Co-infections of Plasmodium knowlesi, P. falciparum, and P. vivax among humans and Anopheles dirus mosquitoes, Southern Vietnam

Ron P. Marchand, Richard Culleton, Yoshimasa Maeno, Nguyen Tuyen Quang, Shusuke Nakazawa

研究成果: Article査読

96 被引用数 (Scopus)

抄録

A single Anopheles dirus mosquito carrying sporozoites of Plasmodium knowlesi, P. falciparum, and P. vivax was recently discovered in Khanh Phu, southern Vietnam. Further sampling of humans and mosquitoes in this area during 2009-2010 showed P. knowlesi infections in 32 (26%) persons with malaria (n = 125) and in 31 (43%) sporozoite-positive An. dirus mosquitoes (n = 73). Coinfections of P. knowlesi and P. vivax were predominant in mosquitoes and humans, while single P. knowlesi infections were found only in mosquitoes. P. knowlesi-co-infected patients were largely asymptomatic and were concentrated among ethnic minority families who commonly spend nights in the forest. P. knowlesi carriers were significantly younger than those infected with other malaria parasite species. These results imply that even if human malaria could be eliminated, forests that harbor An. dirus mosquitoes and macaque monkeys will remain a reservoir for the zoonotic transmission of P. knowlesi.

本文言語English
ページ(範囲)1232-1239
ページ数8
ジャーナルEmerging Infectious Diseases
17
7
DOI
出版ステータスPublished - 07-2011
外部発表はい

All Science Journal Classification (ASJC) codes

  • 疫学
  • 微生物学(医療)
  • 感染症

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