Au cours de la dernière décennie, les données de séquençage génétique des agents pathogènes ont gagné en importance et contribuent désormais de façon déterminante à la détection et à la maîtrise des flambées de maladies infectieuses, en facilitant la mise au point de ...produits de diagnostic, de médicaments et de vaccins et en guidant lesactivités de riposte aux flambées(1-11). L’émergence du nouveau coronavirus, par la suite désigné « coronavirus 2 du syndrome respiratoire aigu sévère » (SARS-CoV-2), a encore accentué l’importance des données de séquençage génétique.
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All lyssaviruses have evolved closely with distinct natural reservoir hosts. The latter are animals species in which a pathogen of an infectious disease are maintained independently. For lyssaviruses, these are a wide range of mammalian species within the Carnivora and Chiroptera (bats) orders with ...a global distribution.
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Objectif du module : Identifier la structure du virus Ebola, la pathogénèse, reconnaitre un cas suspect, faire les prélèvements et le diagnostic de certitude,acheminement des échantillons
Document d’information scientifique
24 avril 2020
Le développement d’une immunité face à un agent pathogène à la suite d’une infection naturelle comporte plusieurs étapes et prend généralement une à deux semaines. Une infection virale entraîne immédiatement une réponse immunit...aire innée, non spécifique, au cours de laquelle les macrophages, les neutrophiles et les cellules dendritiques ralentissent la progression du virus et peuvent même éviter l’apparition de symptômes. Cette réponse non spécifique est suivie d’une réponse adaptative, au cours de laquelle l’organisme produit des anticorps qui se lient spécifiquement au virus. Ces anticorps sont des protéines appelées immunoglobulines. L’organisme produit également des lymphocytes T qui reconnaissent et éliminent les cellules infectées par le virus. Cette réponse adaptative permet parfois d’éliminer le virus de l’organisme et, si elle est suffisamment forte, d’éviter l’aggravation de la maladie ou la réinfection par le même virus. Ce processus est souvent mesuré par la présence d’anticorps dans le sang.
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The health care environment contains a diverse population of microorganisms and can be a reservoir for potential pathogens. If environmental cleaning is not performed correctly, then environmental contamination can contribute to the spread of multidrug-resistant organisms and health care-associated ...infections. Collaboration between infection prevention and control (IPC) and environmental services (EVS) staff limits the role of the health care environment in disease transmission.
This course is also available in the following languages:
Tetun - Bahasa Indonesia
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• Leptospirosis is a disease that is caused by
spirochete bacteria in the genus Leptospira.
There are 10 pathogenic species, and more
than 250 pathogenic serovars.
• While leptospirosis occurs worldwide, it is
more common in tropical or sub-tropical
climates.
Website last accessed on 14.04.2023
Food-borne trematode infections are zoonotic, and their pathogens can be transmitted to humans only after the completion of a complex life cycle, some stages of which take place in the body of an intermediate animal host. The first intermediate hosts of all tr...ematode species are freshwater snails. The second host varies depending on the species: in the case of clonorchiasis and opisthorchiasis it is freshwater fish, and in the case of paragonimiasis it is crustaceans.
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Website last accessed on 14.04.2023
Les trématodes d'origine alimentaire sont des zoonoses et leurs agents pathogènes ne peuvent être transmis à l'homme qu'après avoir accompli un cycle de vie complexe, dont certaines étapes se déroulent dans un hôte animal intermédiaire. Les premiers h...ôtes intermédiaires de toutes les espèces de trématodes sont les escargots d'eau douce. Le deuxième hôte diffère selon l'espèce : dans le cas de la clonorchiase et de l'opisthorchiase, il s'agit de poissons d'eau douce, et dans le cas de la paragonimiase, de crustacés.
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Website last accessed on 14.04.2023
Food-borne trematode infections are zoonotic, and their pathogens can be transmitted to humans only after the completion of a complex life cycle, some stages of which take place in the body of an intermediate animal host. The first intermediate hosts of all tr...ematode species are freshwater snails. The second host varies depending on the species: in the case of clonorchiasis and opisthorchiasis it is freshwater fish, and in the case of paragonimiasis it is crustaceans.
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First Global Patient Safety Challenge Clean Care is Safer Care
The WHO Guidelines on Hand Hygiene in Health Care provide health-care workers (HCWs), hospital administrators and health authorities with a thorough review of evidence on hand hygiene in health care and specific recommendations to impro...ve practices and reduce transmission of pathogenic microorganisms to patients and HCWs. The present Guidelines are intended to be implemented in any situation in which health care is delivered either to a patient or to a specific group in a population. Therefore, this concept applies to all settings where health care is permanently or occasionally performed, such as home care by birth attendants.
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The threat posed by Zika virus infection highlights the need to reinforce preparedness arrangements for mosquito-borne diseases in EU/EEA countries, especially for pathogens transmitted by Aedes aegypti and Aedes albopictus.
The aim of this document is to highlight measures that can effectively red...uce the risk of importation and local transmission of pathogens transmitted by Ae. aegypti and Ae. albopictus. The main diseases of concern in this context are Zika, dengue, chikungunya and yellow fever.
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The pre-clinical pipeline shows more innovation and diversity, with 252 agents being developed to treat WHO priority pathogens.
However, these products are in the very early stages of development and still need to be proven effective and safe. The optimistic scenario, the report indicates, is for... the first two to five products to become available in about 10 years.
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Textes du Codex concernant la résistance aux antimicrobiens d’origine alimentaire
Textos del Codex sobre la resistencia a los antimicrobianos transmitida por los alimentos
Antimicrobial resistance (AMR) is a major global public health concern and a food safety issue. When pathogens become r...esistant to antimicrobial agents they can pose a greater human health risk as a result of potential treatment failure, loss of treatment options and increased likelihood and severity of disease
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In Kenya, the bacterial infections that contribute most to human disease are often those in which re-‐sistance is most evident. Examples are multidrug-‐resistant enteric bacterial pathogens such as typhoid, ... diarrhoeagenic Escherichia coli and invasive non-‐typhi salmonella, penicillin-‐resistant Streptococcus pneu-‐moniae, vancomycin-‐resistant enterococci, methicillin-‐resistant Staphylococcus aureus and multidrug-‐re-‐sistant Mycobacterium tuberculosis. Resistance to medicines commonly used to treat malaria is of particu-‐lar concern, as is the emerging resistance to anti-‐HIV drugs. Often, more expensive medicines are required to treat these infections, and this becomes a major challenge in resource-‐poor settings.
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Haematologica has published European guidelines for empirical and targeted antibacterial therapy forfebrile neutropenic patients in the era of emerging resistance (ECIL-4). Indeed, collateral damage by broad-spectrum antibiotic therapy includes selection of multidrugresistant pathogens, and incr...eased predisposition to infec-tion by fungi and Clostridium difficile. Antibiotic resistance has become a major public health concern, with fears expressed that we will soon run out of antibiotics.
Haematologica December 2013 98: 1821-1825; doi:10.3324/haematol.2013.091769
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Antimicrobial resistant (AMR) organisms are increasing globally, threatening to render existing treatments ineffective against many infectious diseases. In Africa, AMR has already been documented to be a problem for HIV and the pathogens that cause malaria, tuberculosis, typhoid, cholera, meningitis..., gonorrhea, and dysentery. Recognizing the urgent need for action, the World Health Assembly adopted the Global Action Plan on Antimicrobial Resistance in May 2015. In accordance with the Global Action Plan and to meet needs specific to Africa, Africa CDC will establish the Anti-Microbial Resistance Surveillance Network (AMRSNET). AMRSNET is a network of public health institutions and leaders from human and animal health sectors who will collaborate to measure, prevent, and mitigate harms from AMR organisms.
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Health workers are at the front line of the COVID-19 outbreak response and as such are exposed to hazards that put them at risk of infection. Hazards include pathogen exposure, long working hours, psychological distress, fatigue, occupational burnout, stigma, and physical and psychological violence.... This document highlights the rights and responsibilities of health workers, including the specific measures needed to protect occupational safety and health.
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In the current absence of vaccine for COVID-19, public health response target breaking the chain of infection by focusing on the mode of transmission. This paper summarizes current evidence-base around the transmission dynamics, pathogenic, and clinical features of COVID-19, to critically identify i...f there are any gaps in the current IPC guidelines.
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The growing understanding of how sequence information can contribute to improved public health is driving global investments in sequencing facilities and programmes. The falling cost and complexity of generating GSD provides opportunities for expanding sequencing capacity; however, challenges to wid...espread implementation remain. This document provides policy-makers and stakeholders with guidance on how to maximize the public health benefit of SARS-CoV-2 genomic sequencing activities in the short and long term as the pandemic continues to unfold. Practical considerations for the implementation of a virus genomic sequencing programme and an overview of the public health objectives of genomic sequencing are covered. This guidance focuses on SARS-CoV-2 but is applicable to other pathogens of public health concern.
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Reports of antimicrobial-resistant (AMR) microorganisms are increasing globally, threatening to render existing treatments ineffective against many infectious diseases. In Africa, AMR has already been documented to be a problem for human immunodeficiency virus (HIV) and the pathogens that cause mala...ria, tuberculosis (TB), typhoid, cholera, meningitis, gonorrhoea and dysentery. Recognizing the urgent need for action, the 2016 United Nations (UN) General Assembly approved a resolution to ensure sustained and effective global action to address AMR.
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