Presently, there is no evidence that the virus responsible for the current COVID-19 pandemic is carried by domestic food-producing animals, such as chickens, ducks, other poultry, pigs, cattle, camels, horses, sheep, goats, rabbits, guinea pigs or fish. While live animals can be a source of pathogen...s, all types of food can potentially be contaminated through contact with contaminated equipment, surfaces or environments. Proper cleaning and the prevention of cross-contamination are critical in the control of foodborne illnesses. The application of sound principles of environmental sanitation, personal hygiene and established food safety practices will reduce the likelihood that harmful pathogens will threaten the safety of the food supply, regardless of whether the food is sourced from intensive agriculture, small stakeholders or wildlife.
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This guidance note developed by UNICEF is intended to help WASH staff in their preparedness and response to the current COVID-19 pandemic. It provides an overview of Infection Prevention and Control (IPC) and its intersection with water, sanitation and hygiene (WASH), and how staff can help prevent ...infection and its spread in schools, whether through human-to-human or by touching surfaces contaminated with the virus. WASH services, including waste management and environmental cleaning, are all important for IPC. This brief is available in English, Spanish, and French here.
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Cette note d'orientation développée par l'UNICEF est destinée à aider le personnel WASH dans sa préparation et sa réponse à la pandémie actuelle de COVID-19. Elle donne un aperçu de la prévention et du contrôle des infections (IPC) et de son intersection avec l'eau, l'assainissement et l'...hygiène (WASH), et explique comment le personnel peut contribuer à prévenir l'infection et sa propagation dans les écoles, que ce soit par contact entre humains ou avec des surfaces contaminées par le virus. Les services WASH, y compris la gestion des déchets et le nettoyage de l'environnement, sont tous importants pour la CIP. Ce dossier est disponible en anglais, espagnol et français ici.
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This guidance note is for UNICEF Regional and Country Office WASH staff to help them in their preparedness and response to the current COVID-19 global pandemic. It provides an overview of Infection Prevention and Control (IPC) and its intersection with water, sanitation and hygiene (WASH) and how UN...ICEF staff can help prevent infection and its spread in schools, through human to human and by touching surfaces contaminated with the virus. WASH services including waste management and environmental cleaning are all important for IPCs.
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This review focusses on the interactions between the etiologic agent of Chagas disease, Trypanosoma cruzi, and its triatomine vector. The flagellate mainly colonizes the intestinal tract of the insect. The effect of triatomines on trypanosomes is indicated by susceptibility and refractoriness phenom...ena that vary according to the combination of the strains. Other effects are apparent in the different regions of the gut. In the stomach, the majority of ingested blood trypomastigotes are killed while the remaining transform to round stages. In the small intestine, these develop into epimastigotes, the main replicative stage. In the rectum, the population density is the highest and is where the infectious stage develops, the metacyclic trypomastigote. In all regions of the gut, starvation and feeding of the triatomine affect T. cruzi. In the small intestine and rectum, starvation reduces the population density and more spheromastigotes develop. In the rectum, feeding after short-term starvation induces metacyclogenesis and after long-term starvation the development of specific cells, containing several nuclei, kinetoplasts and flagella. When considering the effects of T. cruzi on triatomines, the flagellate seems to be of low pathogenicity. However, during stressful periods, which are normal in natural populations, effects occur often on the behaviour, eg, in readiness to approach the host, the period of time before defecation, dispersal and aggregation. In nymphs, the duration of the different instars and the mortality rates increase, but this seems to be induced by repeated infections or blood quality by the feeding on infected hosts. Starvation resistance is often reduced by infection. Longevity and reproduction of adults is reduced, but only after infection with some strains of T. cruzi. Only components of the surface coat of blood trypomastigotes induce an immune reaction. However, this seems to act against gut bacteria and favours the development of T. cruzi.
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Part of the MSF "Guideline for cholera control"
Accessed online March 2018
This is a part of a series of lesson plans created by Peace Corps volunteers in Senegal about vaccine preventable diseases
Document also available in Arabic, Chinese and Vietnamese. For other language versions go to http://www.schn.health.nsw.gov.au/parents-and-carers/fact-sheets/teeth-caring-for-your-childs-teeth
This country profile presents a summary and analysis of Argentina's status with yellow fever. It is part of a series of profiles on this topic, each focusing on a different country in the Region of the Americas. Argentina's geographical location presents a wide territorial extension throughout diffe...rent latitudes, which determines a wide climatic variety, maintaining the conditions for the enzootic transmission of the yellow fever virus in jungle areas of the northeast of the country bordering Brazil and Paraguay. After controlling the major urban epidemics that hit the port city of Buenos Aires in the 20th century, Argentina maintains foci of enzootic activity in the northeast and isolated human cases for jungle acquisition. The increases in viral activity usually occur in a regional context of epizootics that affect southern Brazil and eastern Paraguay. Argentina has not presented autochthonous cases since 2008. Outbreaks have been sporadic with long intervals without evidence of viral activity.
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