Laboratório de Eco-Epidemiologia da Doença de Chagas, Instituto Oswaldo Cruz, Brazil.
Acta Trop. 2012 Jan;121(1):30-3. doi: 10.1016/j.actatropica.2011.10.005. Epub 2011 Oct 12.
The use of geo-spatial analysis to anticipate transmission risk for Chagas disease was tested in a rural area of northeast Brazil in an approach that combined geo-referencing and exploratory study of triatomine infestation, including related elements such as the environment and hosts. A total of 617 triatomine specimens, mainly Triatoma brasiliensis, were captured, exhibiting an overall T. cruzi positivity of 44.4%. Layer analysis indicated that the greatest transmission risk to man was associated with woodpiles. The buffer area generated contained uninhabited dwellings teeming with bats and positive bugs. Other locations outside the buffer, near uninhabited dwellings housing cattle, contained colonies of triatomines harboring T. cruzi. The results indicate that local residents' activities themselves favor the development of risk areas for Chagas disease.
利用地理空间分析来预测巴西东北部农村地区的恰加斯病传播风险，这种方法结合了地理参考和对锥蝽感染的探索性研究，包括环境和宿主等相关因素。共捕获了 617 只锥蝽标本，主要是巴西锥蝽，其总体 T. cruzi 阳性率为 44.4%。分层分析表明，对人类传播风险最大的是柴堆。生成的缓冲区包含了无人居住的房屋，里面挤满了蝙蝠和带虫。缓冲区外的其他地方，靠近无人居住的牛舍，也有携带 T. cruzi 的锥蝽群。结果表明，当地居民的活动本身有利于恰加斯病危险区域的发展。
