Global Epidemiology of Plasmodium vivax

Plasmodium vivax is the most widespread human malaria, putting 2.5 billion people at risk of infection. Its unique biological and epidemiological characteristics pose challenges to control strategies that have been principally targeted against Plasmodium falciparum Unlike P. falciparum, P. vivax inf...

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Vydáno v:The American journal of tropical medicine and hygiene Ročník 95; číslo 6 Suppl; s. 15
Hlavní autoři: Howes, Rosalind E, Battle, Katherine E, Mendis, Kamini N, Smith, David L, Cibulskis, Richard E, Baird, J Kevin, Hay, Simon I
Médium: Journal Article
Jazyk:angličtina
Vydáno: United States 28.12.2016
Témata:
Global Health
Humans
Malaria, Vivax - epidemiology
Malaria, Vivax - parasitology
Plasmodium vivax - physiology
ISSN:1476-1645, 1476-1645
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Shrnutí:Plasmodium vivax is the most widespread human malaria, putting 2.5 billion people at risk of infection. Its unique biological and epidemiological characteristics pose challenges to control strategies that have been principally targeted against Plasmodium falciparum Unlike P. falciparum, P. vivax infections have typically low blood-stage parasitemia with gametocytes emerging before illness manifests, and dormant liver stages causing relapses. These traits affect both its geographic distribution and transmission patterns. Asymptomatic infections, high-risk groups, and resulting case burdens are described in this review. Despite relatively low prevalence measurements and parasitemia levels, along with high proportions of asymptomatic cases, this parasite is not benign. Plasmodium vivax can be associated with severe and even fatal illness. Spreading resistance to chloroquine against the acute attack, and the operational inadequacy of primaquine against the multiple attacks of relapse, exacerbates the risk of poor outcomes among the tens of millions suffering from infection each year. Without strategies accounting for these P. vivax-specific characteristics, progress toward elimination of endemic malaria transmission will be substantially impeded.
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ISSN:1476-1645
1476-1645
DOI:10.4269/ajtmh.16-0141