Leishmaniasis: epidemiological situation

20 Nov 2016 World Health Organization
375 volte

 

Status of endemicity of cutaneous leishmaniasis, worldwide, 2015

Recurrent epidemics of visceral leishmaniasis in East Africa (Ethiopia, Kenya, South Sudan and Sudan) have caused high morbidity and mortality in affected communities. Likewise, major epidemics of cutaneous leishmaniasis have affected different parts Afghanistan and the Syrian Arab Republic. In 2014, more than 90% of new cases reported to WHO occurred in six countries: Brazil, Ethiopia, India, Somalia, South Sudan and Sudan. In the WHO South-East Asia Region, the kala-azar elimination programme is progressing satisfactorily, and countries such as Bangladesh that reported more than 9000 cases in 2006 reported an average of some 600 news cases in 2014–2015. The majority of cutaneous Leishmaniasis cases occur in Afghanistan, Algeria, Brazil, Colombia, the Islamic Republic of Iran, Pakistan, Peru, Saudi Arabia and the Syrian Arab Republic.

Status of endemicity of visceral leishmaniasis, worldwide, 2015

Anthroponotic cutaneous leishmaniasis (where humans are the major reservoir of the parasite) is predominantly urban and periurban, and shows patterns of spatial clustering similar to those of anthroponotic visceral leishmaniasis in South-East Asia. The disease is usually characterized by large outbreaks in densely populated cities, especially in war and conflicts zones, refugee camps and in settings where there are large-scale migration of populations. The epidemiology of cutaneous leishmaniasis in the Region of the Americas is complex, with intra- and inter-specific variation in transmission cycles, reservoir hosts, sandfly vectors, clinical manifestations and response to therapy, and multiple circulating Leishmania species in the same geographical area. Almost 90% of mucocutaneous leishmaniasis cases occurs in the Plurinational State of Bolivia, Brazil and Peru.

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Scienzaonline con sottotitolo Sciencenew  - Periodico
Autorizzazioni del Tribunale di Roma – diffusioni:
telematica quotidiana 229/2006 del 08/06/2006
mensile per mezzo stampa 293/2003 del 07/07/2003
Scienceonline, Autorizzazione del Tribunale di Roma 228/2006 del 29/05/06
Pubblicato a Roma – Via A. De Viti de Marco, 50 – Direttore Responsabile Guido Donati

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