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巴西圣州东部一个新内脏利什曼病疫源地中长须白蛉（Cembrene-1 种群）的自然感染利什曼原虫。

Natural infection of Lutzomyia longipalpis (Cembrene-1 population) with Leishmania infantum in a new visceral leishmaniasis focus in the eastern region of São Paulo State, Brazil.

机构信息

Universidade de São Paulo, Faculdade de Saúde Pública, Programa de Pós-Graduação em Saúde Pública, São Paulo, SP, Brasil.

Universidade São Paulo, Faculdade de Saúde Pública, Departamento de Epidemiologia, São Paulo, SP, Brasil.

出版信息

Rev Soc Bras Med Trop. 2021 Feb 26;54:e05862020. doi: 10.1590/0037-8682-0586-2020. eCollection 2021.

DOI:10.1590/0037-8682-0586-2020
PMID:33656152
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8008849/
Abstract

INTRODUCTION

Visceral leishmaniasis (VL) transmission has been associated with two different populations of the Lutzomyia longipalpis complex in São Paulo state.

METHODS

In a recent focus of VL, we captured and dissected sand flies and investigated Leishmania infantum infection by parasitological, PCR, and sequencing analysis.

RESULTS

Flagellates were observed in 2 of 47 (4.2%) cembrene-1 Lu. longipalpis females. The sequences obtained matched those of Le. infantum.

CONCLUSIONS

We found that the transmission of Le. infantum by cembrene-1 females may occur at a high rate in this focus of VL and presented new data on the vector capacity of this population.

摘要

引言

内脏利什曼病（VL）的传播与圣保罗州两种不同的长角血蜱复合体种群有关。

方法

在最近 VL 的一个焦点中，我们捕获并解剖了沙蝇，并通过寄生虫学、PCR 和测序分析调查了婴儿利什曼原虫感染。

结果

在 47 只cembrene-1 Lu. longipalpis 雌性中观察到 2 只（4.2%）鞭毛。获得的序列与婴儿利什曼原虫的序列相匹配。

结论

我们发现，在这个 VL 焦点中，cembrene-1 雌性传播婴儿利什曼原虫的速度可能很高，并提供了关于该种群媒介能力的新数据。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99b7/8008849/da1f5ff0a85b/1678-9849-rsbmt-54-e0586-2020-gf2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99b7/8008849/fc1febadcd67/1678-9849-rsbmt-54-e0586-2020-gf1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99b7/8008849/da1f5ff0a85b/1678-9849-rsbmt-54-e0586-2020-gf2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99b7/8008849/fc1febadcd67/1678-9849-rsbmt-54-e0586-2020-gf1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/99b7/8008849/da1f5ff0a85b/1678-9849-rsbmt-54-e0586-2020-gf2.jpg

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