The clinical manifestations most frequently observed in cats with leishmaniasis caused by Leishmania infantum are cutaneous alterations, which suggest a high parasitic load in the skin and the possibility of infecting a vector. This study evaluated the infectiousness of to phlebotomine sand flies cats infected with L. infantum. A total of 12 cats with infection by L. infantum from the city of Teresina, Piauí, Brazil, were included in the study. Cats were diagnosed by direct visualization of the parasite. Laboratory-bred insects, free from infection by Leishmania spp. were offered a blood meal for 60 min on cats infected with L. infantum. On the fifth and sixth day after the blood meal, flies were dissected to assess promastigote forms of the parasite in the digestive system. Eight cats (67 %) were able to infect the vectors. The frequency of infected insects per cat ranged 0.0-94.4%. The mean frequency of insects feeding on cats was 95.2 %. Large numbers of the parasite were observed per insect, but were not quantified. The result confirm that cats are able to infect L. longipalpis, indicating that cats are part of the epidemiological chain of VL, acting as reservoir of the disease.

中文翻译：

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在被婴儿利什曼原虫感染的猫中感染了Lutzomyia longipalpis。

在由婴儿利什曼原虫引起的患有利什曼病的猫中最常观察到的临床表现是皮肤改变，这表明皮肤中的寄生虫负荷很高，并且有可能感染载体。这项研究评估了感染了婴儿乳杆菌的毒to对猫的传染性。该研究包括来自巴西Piauí的Teresina市的总共12只被婴儿乳杆菌感染的猫。通过直接可视化寄生虫诊断出猫。实验室繁殖的昆虫，不受利什曼原虫属细菌感染。为感染了婴儿乳杆菌的猫提供了60分钟的血粉。血餐后的第五天和第六天，解剖苍蝇以评估消化系统中寄生虫的前鞭毛体形式。八只猫（67％）能够感染该载体。每只猫被感染的昆虫的频率范围为0.0-94.4％。以猫为食的昆虫的平均发生率为95.2％。每只昆虫观察到大量寄生虫，但没有量化。结果证实，猫能够感染长鞭乳杆菌，表明猫是VL流行病学链的一部分，是该病的宿主。