Following review of evidence and advice from the Technical Advisory Group (TAG) on Tuberculosis (TB) Diagnostics and Laboratory Strengthening, the World Health Organization (WHO) announces that current WHO recommendations for the use of interferon-gamma release assays (IGRA) are also valid for Beij...ing Wantai’s TB-IGRA and Qiagen QuantiFERON-TB Gold Plus products. This expands the range of tests available to detect TB infection. Full details are provided in this WHO policy statement.
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The Lancet Global Health: DOI: http://dx.doi.org/10.1016/S2214-109X(16)30098-5
Open Access
Recommended actions and international and national level
The objectives of these WHO guidelines are to provide updated evidence- based recommendations for the treatment of persons with hepatitis C infection using, where possible, all DAA-only combinations. The guidelines also provide recommendations on the preferred regimens based on a patient’s HCV gen...otype and clinical history, and assess the appropriateness of continued use of certain medicines. This document also includes existing recommendations on screening for HCV infection and care of persons infected with HCV that were first issued in 2014
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Recommended actions at international and national levels
MMWR. Recommendations and Reports:
December 16, 2005 / 54(RR15);49-55
Preventive chemotherapy with praziquantel (PZQ) is the cornerstone of schistosomiasis control. However, a single dose of PZQ (40 mg/kg) does not cure all infections. Repeated doses of PZQ at short intervals might increase efficacy in terms of cure rate (CR) and intensity reduction rate (IRR). Here, ...we determined the efficacy of a single versus four repeated treatments with PZQ on Schistosoma mansoni infection in school-aged children from Côte d'Ivoire, using two different diagnostic tests.
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Orientations provisoires
25 janvier 2020
Ce document est la première édition des orientations relatives aux stratégies de lutte anti-infectieuse à mettre en œuvre en cas de suspicion d’infection par un nouveau coronavirus (2019-nCoV). Il a été adapté du document de l’OMS intitulé P...révention et lutte contre les infections lors de la prise en charge de cas probables ou confirmés d’infection par le coronavirus du syndrome respiratoire du Moyen-Orient (MERS-CoV)(1), sur la base des connaissances actuelles de la situation en Chine et dans d’autres pays où des cas ont été identifiés, et de l’expérience acquise sur le syndrome respiratoire aigu sévère (SRAS)-CoV et le MERS-CoV (2).
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HAT diagnosis relies on laboratory techniques because clinical signs and symptoms are unspecific. Serodiagnostic tests exist only for Tbg and are based on the detection of specific antibodies, thus they are not confirmatory of infection. With the current low disease prevalence, the positive predicti...ve value of serological tests is particularly low. Field-applicable tools include the card agglutination test for trypanosomiasis (CATT) used mainly in active screening by specialized mobile teams, and the rapid diagnostic tests that are more suitable for individual testing at point-of-care. Confirmation of Tbg infection requires microscopic examination of body fluids necessitating specific training. The best performing methods are laborious and reach 85–95% diagnostic sensitivity when performed by skilled personnel.
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Background: The human helminth infections include ascariasis, trichuriasis, hookworm infections, schistosomiasis, lymphatic filariasis (LF) and onchocerciasis. It is estimated that almost 2 billion people worldwide are infected with helminths. Whilst the WHO treatment guidelines for helminth infecti...ons are mostly aimed at controlling morbidity, there has been a recent shift with some countries moving towards goals of disease elimination through mass drug administration, especially for LF and onchocerciasis. However, as prevalence is driven lower, treating entire populations may no longer be the most efficient or cost-effective strategy. Instead, it may be beneficial to identify individuals or demographic groups who are persistently infected, often termed as being “predisposed” to infection, and target treatment at them.
Methods: The authors searched Embase, MEDLINE, Global Health, and Web of Science for all English language, humanbased papers investigating predisposition to helminth infections published up to October 31st, 2017. The varying definitions used to describe predisposition, and the statistical tests used to determine its presence, are summarised. Evidence for predisposition is presented, stratified by helminth species, and risk factors for predisposition to infection are identified and discussed.
Results: In total, 43 papers were identified, summarising results from 34 different studies in 23 countries. Consistent evidence of predisposition to infection with certain species of human helminth was identified. Children were regularly found to experience greater predisposition to Ascaris lumbricoides, Schistosoma mansoni and S. haematobium than adults. Females were found to be more predisposed to A. lumbricoides infection than were males. Household clustering of infection was identified for A. lumbricoides, T. trichiura and S. japonicum. Ascaris lumbricoides and T. trichiura also showed evidence of familial predisposition. Whilst strong evidence for predisposition to hookworm infection was identified, findings with regards to which groups were affected were considerably more varied than for other helminth species.
Conclusion: This review has found consistent evidence of predisposition to heavy (and light) infection for certain human helminth species. However, further research is needed to identify reasons for the reported differences between demographic groups. Molecular epidemiological methods associated with whole genome sequencing to determine ‘who infects whom’ may shed more light on the factors generating predisposition.
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Este documento propone: Contenidos técnicos sobre el ZIKV, sus manifestaciones, complicaciones, formas de transmisión y medidas de prevención a utilizar para el abordaje de “preguntas más frecuentes” y de mensajes en piezas y materiales de información y comunicación, charlas comunitarias, ...vocerías entre otros. Recomendaciones para la elaboración de planes de comunicación y acciones de comunicación de riesgos ante el ZIKV
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