Instituto Conmemorativo Gorgas de Estudios de la Salud, ICGES, Panama.
Vet Parasitol. 2011 Jun 10;178(3-4):360-3. doi: 10.1016/j.vetpar.2010.12.043. Epub 2011 Jan 11.
The prevalence of canine trypanosomosis was investigated in two Chagas disease endemic rural communities located in the central region of Panama. Serologic tests for Trypanosoma cruzi infection revealed a prevalence of 11.1%. Hemocultures coupled with PCR analysis demonstrated a Trypanosoma rangeli infection rate of 5.1%. An overall trypanosome infection index of 16.2% (16/99) was detected in this canine population. One dog had a mixed infection of T. cruzi and T. rangeli. Six of the trypanosome-infected dogs belong to people who were diagnosed of Chagas disease. We conclude that dogs from this rural area of Panama are frequently infected with trypanosomes transmitted by the sylvatic vector, Rhodnius pallescens, and suggest that dogs are important in the peridomestic transmission cycle of trypanosomes as reservoirs and hosts. The epidemiological implications of these findings are discussed.
在巴拿马中部两个恰加斯病流行的农村社区，调查了犬类锥虫病的流行情况。针对克氏锥虫感染的血清学检测显示，感染率为 11.1%。血培养联合 PCR 分析显示，感染拉氏锥虫的比例为 5.1%。在该犬群中，总锥虫感染指数为 16.2%（16/99）。有 1 只狗同时感染了克氏锥虫和拉氏锥虫。6 只感染锥虫的狗所对应的主人被诊断患有恰加斯病。我们的结论是，来自巴拿马农村地区的这些狗经常受到通过森林传播媒介 Rhodnius pallescens 传播的锥虫感染，并表明狗作为储存宿主和宿主，在家庭周围传播锥虫的循环中起着重要作用。讨论了这些发现的流行病学意义。
