20 April 2022. The response to the COVID-19 pandemic continues to adversely affect essential TB services in many countries. A first report of case studies was published in 2021 comprising 23 examples of innovative interventions implemented by countries to effectively respond to disruptions of TB ser...vices caused or exacerbated by the COVID-19 pandemic. This second, consolidated report incorporates new case studies, as well as updates to previously reported case studies
more
2nd edition. The Event-based Surveillance Framework is intended to be used by authorities and agencies responsible for surveillance and response. This framework serves as an outline to guide stakeholders interested in implementing event-based surveillance (EBS) using a multisectoral, One Health appr...oach. You can download the Training Manual and Framework in Arabic, English, French, and Portuguese
more
March 2020
The number of African Union Member States reporting COVID-
19 cases is increasing and there is a likelihood of community transmission. The WHO recently modified the COVID-19 suspect case definition to include severe acute respiratory infection and advises testing of all severe acute res...piratory illness (SARI) cases.1 However, many Member States have not yet started implementing these changes, they are still focussing surveillance efforts on individuals with travel history to an area with local COVID-19 transmission. This means patients with similar symptoms, but no apparent contact, may not
be investigated.
more
La coordination de la surveillance épidémiologique aux points d'entrée et avec les systèmes nationaux est un processus essentiel pour la détection précoce des risques sanitaires internationaux et la protection de la santé publique mondiale. Elle repose sur la collaboration entre les pays, l'...change rapide d'informations via des canaux officiels, et l'application des directives du Règlement Sanitaire International (RSI). Des mécanismes de communication et d'alerte efficaces, ainsi que des plans de riposte coordonnés, permettent de transformer les données de surveillance en actions concrètes pour prévenir la propagation des maladies.
more
Technical Brief
HIV patient monitoring and case surveillance
WHO/HIV/2017.11
Diphtheria is caused by Corynebacterium species, mostly by toxin-producing Corynebacterium diphtheriae and rarely by toxin-producing strains of C. ulcerans and C. pseudotuberculosis. The most common type of diphtheria is classic respiratory diphtheria, whereby the exotoxin produced characteristicall...y causes the formation of a pseudomembrane in the upper respiratory tract and damages other organs, usually the myocardium and peripheral nerves. Acute respiratory obstruction, acute systemic toxicity, myocarditis and neurologic complications are the usual causes of death. The infection can also affect the skin (cutaneous diphtheria). More rarely, it can affect mucous membranes at other non-respiratory sites, such as genitalia and conjunctiva.
C. diphtheriae is transmitted from person to person by intimate respiratory and direct contact; in contrast, C. ulcerans and C. pseudotuberculosis are zoonotic infections, not transmitted person-to-person. The incubation period of C. diphtheriae is two to five days (range 1– 10 days). A person is infectious as long as virulent bacteria are present in respiratory secretions, usually two weeks without antibiotics, and seldom more than six weeks. In rare cases, chronic carriers may shed organisms for six months or more. Skin lesions are often chronic and infectious for longer periods. Effective antibiotic therapy (penicillin or erythromycin) promptly terminates shedding in about one or two days.
more
The strategy recommends that AU Member States should enhance, where feasible, existing COVID-19 surveillance to include:
Community-based surveillance to detect symptomatic cases early for treatment and to avert viral transmission;
Sentinel surveillance in high-risk populations to detect ...and track both presymptomatic and asymptomatic cases; and
Wastewater surveillance to monitor early environmental signs of virus transmission and identify communities where targeted interventions can be implemented to decrease transmission.
more