Browsing by Subject "DEVELOPING-COUNTRIES"

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  • Kort, Remco; Westerik, Nieke; Serrano, L. Mariela; Douillard, Francois P.; Gottstein, Willi; Mukisa, Ivan M.; Tuijn, Coosje J.; Basten, Lisa; Hafkamp, Bert; Meijer, Wilco C.; Teusink, Bas; de Vos, Willem M.; Reid, Gregor; Sybesma, Wilbert (2015)
    Background: The lactic acid bacterium Lactobacillus rhamnosus GG is the most studied probiotic bacterium with proven health benefits upon oral intake, including the alleviation of diarrhea. The mission of the Yoba for Life foundation is to provide impoverished communities in Africa increased access to Lactobacillus rhamnosus GG under the name Lactobacillus rhamnosus yoba 2012, world's first generic probiotic strain. We have been able to overcome the strain's limitations to grow in food matrices like milk, by formulating a dried starter consortium with Streptococcus thermophilus that enables the propagation of both strains in milk and other food matrices. The affordable seed culture is used by people in resource-poor communities. Results: We used S. thermophilus C106 as an adjuvant culture for the propagation of L. rhamnosus yoba 2012 in a variety of fermented foods up to concentrations, because of its endogenous proteolytic activity, ability to degrade lactose and other synergistic effects. Subsequently, L. rhamnosus could reach final titers of 1E+09 CFU ml(-1), which is sufficient to comply with the recommended daily dose for probiotics. The specific metabolic interactions between the two strains were derived from the full genome sequences of L. rhamnosus GG and S. thermophilus C106. The piliation of the L. rhamnosus yoba 2012, required for epithelial adhesion and inflammatory signaling in the human host, was stable during growth in milk for two rounds of fermentation. Sachets prepared with the two strains, yoba 2012 and C106, retained viability for at least 2 years. Conclusions: A stable dried seed culture has been developed which facilitates local and low-cost production of a wide range of fermented foods that subsequently act as delivery vehicles for beneficial bacteria to communities in east Africa.
  • Colston, Josh M.; Zaitchik, Benjamin F.; Badr, Hamada S.; Burnett, Eleanor; Ali, Syed Asad; Rayamajhi, Ajit; Satter, Syed M.; Eibach, Daniel; Krumkamp, Ralf; May, Jurgen; Chilengi, Roma; Howard, Leigh M.; Sow, Samba O.; Hossain, M. Jahangir; Saha, Debasish; Nisar, M. Imran; Zaidi, Anita K. M.; Kanungo, Suman; Mandomando, Inacio; Faruque, Abu S. G.; Kotloff, Karen L.; Levine, Myron M.; Breiman, Robert F.; Omore, Richard; Page, Nicola; Platts-Mills, James A.; Ashorn, Ulla; Fan, Yue-Mei; Shrestha, Prakash Sunder; Ahmed, Tahmeed; Mduma, Estomih; Yori, Pablo Penatero; Bhutta, Zulfiqar; Bessong, Pascal; Olortegui, Maribel P.; Lima, Aldo A. M.; Kang, Gagandeep; Humphrey, Jean; Prendergast, Andrew J.; Ntozini, Robert; Okada, Kazuhisa; Wongboot, Warawan; Gaensbauer, James; Melgar, Mario T.; Pelkonen, Tuula; Freitas, Cesar Mavacala; Kosek, Margaret N. (2022)
    Diarrheal disease, still a major cause of childhood illness, is caused by numerous, diverse infectious microorganisms, which are differentially sensitive to environmental conditions. Enteropathogen-specific impacts of climate remain underexplored. Results from 15 studies that diagnosed enteropathogens in 64,788 stool samples from 20,760 children in 19 countries were combined. Infection status for 10 common enteropathogens-adenovirus, astrovirus, norovirus, rotavirus, sapovirus, Campylobacter, ETEC, Shigella, Cryptosporidium and Giardia-was matched by date with hydrometeorological variables from a global Earth observation dataset-precipitation and runoff volume, humidity, soil moisture, solar radiation, air pressure, temperature, and wind speed. Models were fitted for each pathogen, accounting for lags, nonlinearity, confounders, and threshold effects. Different variables showed complex, non-linear associations with infection risk varying in magnitude and direction depending on pathogen species. Rotavirus infection decreased markedly following increasing 7-day average temperatures-a relative risk of 0.76 (95% confidence interval: 0.69-0.85) above 28 degrees C-while ETEC risk increased by almost half, 1.43 (1.36-1.50), in the 20-35 degrees C range. Risk for all pathogens was highest following soil moistures in the upper range. Humidity was associated with increases in bacterial infections and decreases in most viral infections. Several virus species' risk increased following lower-than-average rainfall, while rotavirus and ETEC increased with heavier runoff. Temperature, soil moisture, and humidity are particularly influential parameters across all enteropathogens, likely impacting pathogen survival outside the host. Precipitation and runoff have divergent associations with different enteric viruses. These effects may engender shifts in the relative burden of diarrhea-causing agents as the global climate changes. Plain Language Summary Diarrheal disease is a big health problem for children. It can be caused by different bugs, which can be caught more easily in certain weather conditions, though not much is understood about this because the climate varies so much from one place to the next. This study combined data from many different countries where diarrhea-causing bugs were diagnosed in children's stool. Satellites recorded what the weather was like on the day each sample was collected. Rotavirus is easiest to catch in cold weather and when water washes over the ground after rain. Dry weather also makes it and other viruses easy to catch. Bacteria spread best when the air is warm and humid, and the soil moist, though one type of E. coli can also be spread in rainwater. Climate change will make dry places drier, wet places wetter and everywhere warmer. This might lead to more diarrhea caused by bacteria and less by viruses in some places, though places with moist soil might see more of every kind of bug.
  • Mardones, Francisco; Arnaiz, Pilar; Pacheco, Paz; Dominguez, Angelica; Villarroel, Luis; Eriksson, Johan G.; Barja, Salesa; Farias, Marcelo; Castillo, Oscar (2014)
  • Lääveri, Tinja; Vilkman, Katri; Pakkanen, Sari; Kirveskari, Juha; Kantele, Anu (2018)
    Background: Among visitors to the (sub)tropics, 20-50% contract travellers' diarrhoea (TD) and 5-30% take antibiotics. While shortening the duration of illness, antimicrobials predispose to acquisition of multi-drug resistant bacteria. Therefore, liberal use is no longer advocated. Although antibiotics kill pathogens, no data support the view that they could prevent post-infectious sequelae. We investigated how antibiotic use for TD abroad impacts the pathogen findings at return. Materials and methods: We revisited 456 travellers' clinical data and stool pathogens examined by qPCR for Salmonella, Yersinia, Campylobacter, Shigella, Vibrio cholerae and enteroaggregative (EAEC), enteropathogenic (EPEC), enterotoxigenic (ETEC), enterohaemorrhagic (EHEC) and enteroinvasive (EIEC) Escherichia coli. Results: Among travellers with TD, antibiotic users had pathogen-positive samples less frequently than non-users (50% versus 83%). The difference was significant for EPEC (23% versus 47%) and EAEC (27% versus 54%), but not ETEC (17% versus 26%) or the other pathogens. Shigella/EIEC was found more often among antibiotic users than non-users (4% versus 1%). Conclusion: Despite antibiotic treatment of TD, half of the users still had stool pathogens at return, reflecting either antibiotic resistance of pathogens or recolonisation/reinfection while abroad. Treatment of TD with antibiotics during travel should not be interpreted to indicate eradication of pathogens.
  • Choque-Velasquez, Joham; Colasanti, Roberto; Baffigo-Torre, Virginia; Estela Sacieta-Carbajo, Luisa; Olivari-Heredia, Jacqueline; Falcon-Lizaraso, Yolanda; Huber Mallma-Torres, Juan; Elera-Florez, Humberto; Hernesniemi, Juha (2017)
    BACKGROUND: Economic, cultural, and geographical reasons usually limit the access to specialized health centers in developing countries, especially in rural areas. Peruvian health system indicators still highlight significant unmet clinical need for neurosurgical patients. Our project is to develop the first highly specialized neurosurgical center in the EsSalud hospital of Trujillo, with the goal to improve the treatment of neurosurgical diseases in that region, thus optimizing their outcomes while decreasing expensive and risky patients transfer to the neurosurgical departments in the capital district. METHODS: After an initial center evaluation, 2 neurosurgeons and 2 nurses from the Helsinki University Central Hospital provided the microneurosurgical training for the local team. Moreover, our team worked closely with the local staff to develop standardized protocols for surgical procedures and postoperative management. RESULTS: From February to May 2016, 59 surgeries were performed in the new Neurosurgical Center, including cerebrovascular and skull-base cases that were never performed before in Trujillo. Moreover, the first "Cerebral Bypass and Vascular Microsurgery Live Course" was held in Trujillo in May 2016. After we left, the local team continued to work following the same protocols we introduced, and built up together. CONCLUSIONS: An effective and adequate operative skill transfer to the local staff may be accomplished in a reasonable amount of time, thus guaranteeing a longlasting improvement of neurosurgical care, while minimizing expenditures on personnel and capital. We believe that this is possible following a general microsurgical philosophy that can be simplified as follows: "simple, clean, fast, and preserving normal anatomy."
  • Wu, Zhuochun; Viisainen, Kirsi; Wang, Ying; Hemminki, Elina (2011)
  • Wang, Haidong; Abajobir, Amanuel Alemu; Abate, Kalkidan Hassen; Abbafati, Cristiana; Abbas, Kaja M.; Abd-Allah, Foad; Abera, Semaw Ferede; Abraha, Haftom Niguse; Abu-Raddad, Laith J.; Abu-Rmeileh, Niveen M. E.; Adedeji, Isaac Akinkunmi; Adedoyin, Rufus Adesoji; Adetifa, Ifedayo Morayo O.; Adetokunboh, Olatunji; Afshin, Ashkan; Aggarwal, Rakesh; Agrawal, Anurag; Agrawal, Sutapa; Kiadaliri, Aliasghar Ahmad; Ahmed, Muktar Beshir; Aichour, Amani Nidhal; Aichour, Ibthiel; Aichour, Miloud Taki Eddine; Aiyar, Sneha; Akanda, Shafqat; Akinyemiju, Tomi F.; Akseer, Nadia; Al-Eyadhy, Ayman; Al Lami, Faris Hasan; Alabed, Samer; Alahdab, Fares; Al-Aly, Ziyad; Alam, Khurshid; Alam, Noore; Alasfoor, Deena; Aldridge, Robert William; Alene, Kefyalew Addis; Alhabib, Samia; Ali, Raghib; Alizadeh-Navaei, Reza; Aljunid, Syed M.; Alkaabi, Juma M.; Alkerwi, Ala'a; Alla, Francois; Allam, Shalini D.; Allebeck, Peter; Kivimaki, Mika; Meretoja, Atte; Meretoja, Tuomo J.; Weiderpass, Elisabete; GBD 2016 Mortality Collaborators (2017)
    Background Detailed assessments of mortality patterns, particularly age-specific mortality, represent a crucial input that enables health systems to target interventions to specific populations. Understanding how all-cause mortality has changed with respect to development status can identify exemplars for best practice. To accomplish this, the Global Burden of Diseases, Injuries, and Risk Factors Study 2016 (GBD 2016) estimated age-specific and sex-specific all-cause mortality between 1970 and 2016 for 195 countries and territories and at the subnational level for the five countries with a population greater than 200 million in 2016. Methods We have evaluated how well civil registration systems captured deaths using a set of demographic methods called death distribution methods for adults and from consideration of survey and census data for children younger than 5 years. We generated an overall assessment of completeness of registration of deaths by dividing registered deaths in each location-year by our estimate of all-age deaths generated from our overall estimation process. For 163 locations, including subnational units in countries with a population greater than 200 million with complete vital registration (VR) systems, our estimates were largely driven by the observed data, with corrections for small fluctuations in numbers and estimation for recent years where there were lags in data reporting (lags were variable by location, generally between 1 year and 6 years). For other locations, we took advantage of different data sources available to measure under-5 mortality rates (U5MR) using complete birth histories, summary birth histories, and incomplete VR with adjustments; we measured adult mortality rate (the probability of death in individuals aged 15-60 years) using adjusted incomplete VR, sibling histories, and household death recall. We used the U5MR and adult mortality rate, together with crude death rate due to HIV in the GBD model life table system, to estimate age-specific and sex-specific death rates for each location-year. Using various international databases, we identified fatal discontinuities, which we defined as increases in the death rate of more than one death per million, resulting from conflict and terrorism, natural disasters, major transport or technological accidents, and a subset of epidemic infectious diseases; these were added to estimates in the relevant years. In 47 countries with an identified peak adult prevalence for HIV/AIDS of more than 0.5% and where VR systems were less than 65% complete, we informed our estimates of age-sex-specific mortality using the Estimation and Projection Package (EPP)-Spectrum model fitted to national HIV/AIDS prevalence surveys and antenatal clinic serosurveillance systems. We estimated stillbirths, early neonatal, late neonatal, and childhood mortality using both survey and VR data in spatiotemporal Gaussian process regression models. We estimated abridged life tables for all location-years using age-specific death rates. We grouped locations into development quintiles based on the Sociodemographic Index (SDI) and analysed mortality trends by quintile. Using spline regression, we estimated the expected mortality rate for each age-sex group as a function of SDI. We identified countries with higher life expectancy than expected by comparing observed life expectancy to anticipated life expectancy on the basis of development status alone. Findings Completeness in the registration of deaths increased from 28% in 1970 to a peak of 45% in 2013; completeness was lower after 2013 because of lags in reporting. Total deaths in children younger than 5 years decreased from 1970 to 2016, and slower decreases occurred at ages 5-24 years. By contrast, numbers of adult deaths increased in each 5-year age bracket above the age of 25 years. The distribution of annualised rates of change in age-specific mortality rate differed over the period 2000 to 2016 compared with earlier decades: increasing annualised rates of change were less frequent, although rising annualised rates of change still occurred in some locations, particularly for adolescent and younger adult age groups. Rates of stillbirths and under-5 mortality both decreased globally from 1970. Evidence for global convergence of death rates was mixed; although the absolute difference between age-standardised death rates narrowed between countries at the lowest and highest levels of SDI, the ratio of these death rates-a measure of relative inequality-increased slightly. There was a strong shift between 1970 and 2016 toward higher life expectancy, most noticeably at higher levels of SDI. Among countries with populations greater than 1 million in 2016, life expectancy at birth was highest for women in Japan, at 86.9 years (95% UI 86.7-87.2), and for men in Singapore, at 81.3 years (78.8-83.7) in 2016. Male life expectancy was generally lower than female life expectancy between 1970 and 2016, and the gap between male and female life expectancy increased with progression to higher levels of SDI. Some countries with exceptional health performance in 1990 in terms of the difference in observed to expected life expectancy at birth had slower progress on the same measure in 2016. Interpretation Globally, mortality rates have decreased across all age groups over the past five decades, with the largest improvements occurring among children younger than 5 years. However, at the national level, considerable heterogeneity remains in terms of both level and rate of changes in age-specific mortality; increases in mortality for certain age groups occurred in some locations. We found evidence that the absolute gap between countries in age-specific death rates has declined, although the relative gap for some age-sex groups increased. Countries that now lead in terms of having higher observed life expectancy than that expected on the basis of development alone, or locations that have either increased this advantage or rapidly decreased the deficit from expected levels, could provide insight into the means to accelerate progress in nations where progress has stalled. Copyright (C) The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license.
  • Lääveri, Tinja; Pakkanen, Sari H.; Antikainen, Jenni; Riutta, Jukka; Mero, Sointu; Kirveskari, Juha; Kantele, Anu (2014)
  • Siikamaki, H.; Kivela, P.; Fotopoulos, M.; Ollgren, J.; Kantele, A. (2015)
    The number of international tourist arrivals reached 1,000 million in 2012. Assessment of travellers' health problems has relied on proportionate morbidity data. Given the lack of data on number of visitors to each region, incidences have been impossible to calculate. This study, largest yet reporting travellers' health problems, is the first to present incidence of illness and injury. Data on Finnish travellers with health problems abroad during 2010 to 2012 were retrieved from the database of an assistance organisation, SOS International, covering 95% of those requiring aid abroad. The numbers were compared with those of Finnish travellers in the database of the Official Statistics of Finland. The SOS International database included 50,710 cases: infections constituted the most common health problem (60%), followed by injuries (14%), diseases of skin (5%), musculoskeletal system and connective tissue (5%), digestive tract (3%), and vascular system (2%). Gastroenteritis (23%) and respiratory infections (21%) proved the most frequent diagnoses. Overall incidence of illness or injury was high in Africa (97.9/100,000 travel days; 95% Bayesian credible interval (BCI): 53.1-145.5), southern Europe plus the eastern Mediterranean (92.3; 95% BCI: 75.4-110.1) and Asia (65.0; 95% BCI: 41.5-87.9). The data show significant differences between geographical regions, indicating the main risks and thus providing destination-specific tools for travellers' healthcare.
  • Pisa, Pedro T.; Landais, Edwige; Margetts, Barrie; Vorster, Hester H.; Friedenreich, Christine M.; Huybrechts, Inge; Martin-Prevel, Yves; Branca, Francesco; Lee, Warren T. K.; Leclercq, Catherine; Jerling, Johann; Zotor, Francis; Amuna, Paul; Al Jawaldeh, Ayoub; Aderibigbe, Olaide Ruth; Amoussa, Waliou Hounkpatin; Anderson, Cheryl A. M.; Aounallah-Skhiri, Hajer; Atek, Madjid; Benhura, Chakare; Chifamba, Jephat; Covic, Namukolo; Dary, Omar; Delisle, Helene; El Ati, Jalila; El Hamdouchi, Asmaa; El Rhazi, Karima; Faber, Mieke; Kalimbira, Alexander; Korkalo, Liisa; Kruger, Annamarie; Ledo, James; Machiweni, Tatenda; Mahachi, Carol; Mathe, Nonsikelelo; Mokori, Alex; Mouquet-rivier, Claire; Mutie, Catherine; Nashandi, Hilde Liisa; Norris, Shane A.; Onabanjo, Oluseye Olusegun; Rambeloson, Zo; Saha, Foudjo Brice U.; Ubaoji, Kingsley Ikechukwu; Zaghloul, Sahar; Slimani, Nadia (2018)
    Objective: To carry out an inventory on the availability, challenges, and needs of dietary assessment (DA) methods in Africa as a pre-requisite to provide evidence, and set directions (strategies) for implementing common dietary methods and support web-research infrastructure across countries. Methods: The inventory was performed within the framework of the " Africa's Study on Physical Activity and Dietary Assessment Methods" (AS-PADAM) project. It involves international institutional and African networks. An inventory questionnaire was developed and disseminated through the networks. Eighteen countries responded to the dietary inventory questionnaire. Results: Various DA tools were reported in Africa; 24-Hour Dietary Recall and Food Frequency Questionnaire were the most commonly used tools. Few tools were validated and tested for reliability. Face-to-face interview was the common method of administration. No computerized software or other new (web) technologies were reported. No tools were standardized across countries. Conclusions: The lack of comparable DA methods across represented countries is a major obstacle to implement comprehensive and joint nutrition-related programmes for surveillance, programme evaluation, research, and prevention. There is a need to develop new or adapt existing DA methods across countries by employing related research infrastructure that has been validated and standardized in other settings, with the view to standardizing methods for wider use.
  • Mero, Sointu; Kirveskari, Juha; Antikainen, Jenni; Ursing, Johan; Rombo, Lars; Kofoed, Poul-Erik; Kantele, Anu (2017)
    Background: In developing countries, diarrhoea is the most common cause of death for children under five years of age, with Giardia lamblia, Cryptosporidium and Entamoeba histolytica as the most frequent pathogenic parasites. Traditional microscopy for stool parasites has poor sensitivity and specificity, while new molecular methods may provide more accurate diagnostics. In poor regions with sample storage hampered by uncertain electricity supply, research would benefit from a method capable of analysing dried stools. Methods: A real-time multiplex PCR method with internal inhibition control was developed for detecting Giardia lamblia, Cryptosporidium hominis/parvum and Entamoeba histolytica directly from stool specimens. Applicability to dried samples was checked by comparing with fresh ones in a small test material. Finally, the assay was applied to dried specimens collected from Guinea-Bissauan children with diarrhoea. Results: The PCR's analytical sensitivity limit was 0.1 ng/ml for G. lamblia DNA, 0.01 ng/ml for E. histolytica DNA and 0.1 ng/ml for Cryptosporidium sp. In the test material, the assay performed similarly with fresh and dried stools. Of the 52 Guinea-Bissauan samples, local microscopy revealed a parasite in 15%, while PCR detected 62% positive for at least one parasite: 44% of the dried samples had Giardia, 23% Cryptosporidium and 0% E. histolytica. Conclusions: Our new multiplex real-time PCR for protozoa presents a sensitive method applicable to dried samples. As proof of concept, it worked well on stools collected from Guinea-Bissauan children with diarrhoea. It provides an epidemiological tool for analysing dried specimens from regions poor in resources.
  • Pelkonen, Tuula; dos Santos, Mauro Dias; Roine, Irmeli; dos Anjos, Elisabete; Freitas, Cesar; Peltola, Heikki; Laakso, Sanna; Kirveskari, Juha (2018)
    Background: Globally, diarrhea kills almost 1500 children daily. In diagnostics, molecular methods are replacing traditional assays. We aimed to investigate enteropathogens in children with and without diarrhea in Luanda, the capital of Angola. Methods: One hundred and ninety-four stool samples from 98 children with acute diarrhea and 96 children without diarrhea were investigated for 17 enteropathogens with multiplex real-time polymerase chain reaction. Results: The median age of children was 10.5 months. Enteropathogens, bacteria, viruses and parasites were detected in 91%, 78%, 50% and 25%, respectively. A positive finding was significantly (P = 0.003) more common in diarrhea when testing for all pathogens combined, for bacteria alone and for viruses alone. More than one pathogen was found more frequently in diarrhea than in non-diarrhea stool samples, in 87% and in 59% (P <0.0001), respectively. The median number (interquartile range) of pathogens detected was 3 (2) versus 1.5 (2; P <0.0001), respectively. When age was taken into account, diarrhea was found to be associated with enterotoxigenic and enteroaggregative Escherichia coli, Shigella, Campylobacter, rotavirus, sapovirus and Cryptosporidium. Conclusions: Multiplex polymerase chain reaction detected enteropathogens in almost all stool samples of children in Luanda, albeit this occurred more often in diarrhea. Children with diarrhea showed more mixed infections than children without diarrhea.
  • Mero, Sointu; Timonen, Suvi; Lääveri, Tinja; Lofberg, Sandra; Kirveskari, Juha; Ursing, Johan; Rombo, Lars; Kofoed, Poul-Erik; Kantele, Anu (2021)
    Background Childhood diarrhoea, a major cause of morbidity and mortality in low-income regions, remains scarcely studied in many countries, such as Guinea-Bissau. Stool sample drying enables later qPCR analyses of pathogens without concern about electricity shortages. Methods Dried stool samples of children under five years treated at the Bandim Health Centre in Bissau, Guinea-Bissau were screened by qPCR for nine enteric bacteria, five viruses, and four parasites. The findings of children having and not having diarrhoea were compared in age groups 0-11 and 12-59 months. Results Of the 429 children- 228 with and 201 without diarrhoea- 96.9% and 93.5% had bacterial, 62.7% and 44.3% viral, and 52.6% and 48.3% parasitic pathogen findings, respectively. Enteroaggregarive Escherichia coli (EAEC; 60.5% versus 66.7%), enteropathogenic E. coli (EPEC; 61.4% versus 62.7%), Campylobacter (53.2% versus 51.8%), and enterotoxigenic E. coli (ETEC; 54.4% versus 44.3%) were the most common bacterial pathogens. Diarrhoea was associated with enteroinvasive E. coli (EIEC)/Shigella (63.3%), astrovirus (75.0%), norovirus GII (72.6%) and Cryptosporidium (71.2%). The only pathogen associated with severe diarrhoea was EIEC/Shigella (p Conclusions Stool pathogens proved common among all the children regardless of them having diarrhoea or not. Author summary Diarrhoeal diseases rank second as cause of childhood mortality and morbidity in low-income countries, yet prospective cohort studies in children with and without diarrhea covering the large variety of diarrhoeal pathogens are limited. While some studies have been conducted among Guinea-Bissauan children, many of them were from the 1990s, when the coverage of the various pathogens was less extensive and the diagnostic methods less sensitive than the modern qPCR methods. We conducted an observational study with a large cohort and covered concomitantly the various bacterial, viral and parasitic agents, and analyzed their associations with the presence/absence of diarrhoeal symptoms and age groups. Importantly, the assay performed well with dried stool samples and, therefore, appears applicable for epidemiological studies in resource-poor regions. A pathogen finding was recorded for almost all (98%) children: bacteria in 97%, viruses in 59% and parasites in 51%. Ongoing diarrhoea was associated with findings of enteroninvasive Escherichia coli/Shigella, astrovirus, norovirus GII and Cryptosporidium. Differences were seen between age groups, infants and young children. The only pathogen associated with severe diarrhoea was enteroninvasive Escherichia coli/Shigella.
  • Lääveri, T.; Antikainen, J.; Pakkanen, S. H.; Kirveskari, J.; Kantele, Anu (2016)
    Travellers' diarrhoea (TD) remains the most frequent health problem encountered by visitors to the (sub) tropics. Traditional stool culture identifies the pathogen in only 15% of cases. Exploiting PCR-based methods, we investigated TD pathogens with a focus on asymptomatic travellers and severity of symptoms. Pre- and post-travel stools of 382 travellers with no history of antibiotic use during travel were analysed with a multiplex quantitative PCR for Salmonella, Yersinia, Campylobacter, Shigella, Vibrio cholerae and five diarrhoeagenic Escherichia coli: enteroaggregative (EAEC), enteropathogenic (EPEC), enterotoxigenic (ETEC), enterohaemorrhagic (EHEC) and enteroinvasive (EIEC). The participants were categorized by presence/absence of TD during travel and on return, and by severity of symptoms. A pathogen was indentified in 61% of the asymptomatic travellers, 83% of those with resolved TD, and 83% of those with ongoing TD; 25%, 43% and 53% had multiple pathogens, respectively. EPEC, EAEC, ETEC and Campylobacter associated especially with ongoing TD symptoms. EAEC and EPEC proved more common than ETEC. To conclude, modern methodology challenges our perception of stool pathogens: all pathogens were common both in asymptomatic and symptomatic travellers. TD has a multibacterial nature, but diarrhoeal symptoms mostly associate with EAEC, EPEC, ETEC and Campylobacter. (C) 2016 The Authors. Published by Elsevier Ltd on behalf of European Society of Clinical Microbiology and Infectious Diseases.
  • Vuori-Holopainen, Elina; Peltola, Heikki (2001)
    Identification of the etiology of childhood pneumonia is difficult, even in the cases that most likely have bacterial origins. A positive blood culture result is diagnostic but rare (50% of cases (virological tests were rarely done); (2) lung tap is safer than is generally considered; (3) potential pneumothorax is mostly symptomless and resolves spontaneously without impairing recovery; and (4) in comparison with routine diagnostic tools, lung tap offers so many advantages that it warrants reconsideration at centers where personnel have experience in handling potential pneumothorax.
  • Choque-Velasquez, Joham; Colasanti, Roberto; Fotakopoulos, George; Elera-Florez, Humberto; Hernesniemi, Juha (2017)
    BACKGROUND: Treatment of multiple intracranial aneurysms is particularly demanding and even more so in a developing country where access to specialized centers may be prevented by different factors. METHODS: Single-stage surgical treatment of 7 cerebral aneurysms was performed in a 58-year-old woman from the northern Peruvian Andes. RESULTS: All 7 aneurysms were successfully and safely clipped through 2 lateral supraorbital craniotomies. The double clip technique was used in 3 aneurysms to prevent any residual aneurysmai neck. CONCLUSIONS: Good teamwork and correct application of microsurgical principles may allow effective treatment in complex neurosurgical cases even in resourcechallenged environments.
  • Tegegne, Yitagesu T.; Ramcilovic-Suominen, Sabaheta; Kalame, Fobissie Blese; Visseren-Hamakers, Ingrid J.; Lindner, Marcus; Kanninen, Markku (2017)
  • Uusitalo, Jenna (2020)
    The Emergency Medical Services (EMS) are emergency services generally been designed to provide urgent treatment of patients with life-threatening conditions outside medical facilities. Even though the EMS belongs to the category of socio-economic rights, it nevertheless has great significance in safeguarding one of the most fundamental human rights, the right to life. In fact, international humanitarian law has recognised this important connection by establishing explicit legal rules that oblige states to ensure urgent medical care for the wounded and sick. International human rights law, on the other hand, has no such expressed provisions. However, the problem is not the lack of legal rules applicable to the EMS as such but rather the challenges in human rights perception, which hinder the EMS being perceived as a valuable human right. Therefore, this article essentially argues that international human rights law does not recognise the EMS as a human right sufficiently and that more thorough actions are required from the UN Committee of Economic, Social and Cultural Rights (CESCR) in this regard.
  • Kukkonen, Markus O.; Muhammad, Muhammad J.; Käyhkö, Niina; Luoto, Miska (2018)
    Rapid urbanization and urban area expansion of sub-Saharan Africa are megatrends of the 21st century. Addressing environmental and social problems related to these megatrends requires faster and more efficient urban planning that is based on measured information of the expansion patterns. Urban growth prediction models (UGPMs) provide tools for generating such information by predicting future urban expansion patterns and allowing testing of alternative planning scenarios. We created an UGPM for Zanzibar City in Tanzania by measuring urban expansion in 2004-2009 and 2009-2013, linking the expansion to explanatory variables with a generalized additive model, measuring the accuracy of the created model, and projecting urban growth until 2030 with the business-as-usual and various alternative planning scenarios. Based on the results, the urban area of Zanzibar City expanded by 40% from 2004 to 2013. Spatial patterns of expansion were largely driven by the already existing building pattern and land-use constraints. The created model predicted future urban expansion moderately well and had an area under the curve value of 0.855 and a true skill statistic result of 0.568. Based on the business-as-usual scenario, the city will expand 89% from 2013 until 2030 and will continue to sprawl to new regions at the outskirts of the current built-up area. Establishing new urban centers had the highest impact on directing urban expansion from the tested alternative planning scenarios. However, the impact of all scenarios was low and therefore also other planning solutions such as vertical development, urban growth boundaries, and gradual improvement of the informal areas should be considered in Zanzibar.
  • Hemilä, Harri; Koivula, Teija (2013)
    BACKGROUND: Tetanus is a severe disease that can be prevented by vaccination. In developing countries vaccination coverage is not always high. Cases still occur also in developed countries, particularly in elderly people owing to their reduced immuno protection. There are about 1 million tetanus cases per year globally. In animal studies, vitamin C has protected against various infections and bacterial toxins. In a study with rats, vitamin C protected against the purified tetanus toxin. OBJECTIVES: To assess the prophylactic and therapeutic effect of vitamin C on tetanus. SEARCH METHODS: In May 2013 we searched the Cochrane Wounds Group Specialised Register; The Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library); Ovid MEDLINE; Ovid MEDLINE (In-Process & Other Non-Indexed Citations ); and Ovid EMBASE for this third update. SELECTION CRITERIA: Controlled trials of vitamin C as a prevention or treatment for tetanus, whether or not these were placebo controlled, in any language, published or unpublished. Two review authors independently made inclusion decisions. DATA COLLECTION AND ANALYSIS: Both review authors independently extracted data from trial reports and assessed methodological quality. Since one of the cells in a 2 × 2 table had no events, we calculated the odds ratio (OR) and its 95% confidence interval (CI) for case fatality rate by using the Peto-method. Another of the 2 × 2 tables had no empty cells and the inverse-variance method was used to calculate its risk ratio (RR) estimate and 95% CI. We also used the Fisher's exact test to calculate the exact 95% CI for the OR of the 2 × 2 table with the empty cell. MAIN RESULTS: One single trial was eligible for inclusion. This non-randomised, unblinded, controlled trial undertaken in Bangladesh involved 117 tetanus patients. Vitamin C at a dosage of 1 g/day was administered intravenously alongside conventional treatment. At recruitment, the participants were stratified into two age groups and the results were reported by age. There was a significant difference in the vitamin C effect between the two age groups (P = 0.01). In the tetanus patients aged 1 to 12 years (n = 62), vitamin C treatment was associated with a 100% reduction in case fatality rate (95% CI from -100% to -94%). In patients aged 13 to 30 years (n = 55), vitamin C treatment was associated with a 45% reduction in case fatality rate (95% CI from -69% to -5%). AUTHORS' CONCLUSIONS: A single, non-randomised, poorly reported trial of vitamin C as a treatment for tetanus suggests a considerable reduction in mortality. However, concerns about trial quality mean that this result must be interpreted with caution and vitamin C cannot be recommended as a treatment for tetanus on the basis of this evidence. New trials should be carried out to examine the effect of vitamin C on tetanus treatment.