Zoonosis Control Center, São Paulo City-COVISA-SMS-PMSP, Brazil.
Am J Trop Med Hyg. 2010 Feb;82(2):315-7. doi: 10.4269/ajtmh.2010.09-0227.
The biodiversity of potential leptospiral reservoir hosts is lower in urban than in rural environments. Previous data indicate the potential for bats to act as carriers of Leptospira in regions such as the Amazon of South America and in Australia. Yet, little is known about the contribution of bats to leptospirosis in urban environments in South America. This study aimed to test the hypothesis that bats infected with Leptospira are sources of leptospirosis transmission to humans in São Paulo City, Brazil. Six of 343 bats caught in different districts within the city of Sao Paulo (182 insectivorous, 161 frugivorous or nectarivorous) were polymerase chain reaction (PCR) positive for pathogenic Leptospira; no seropositive bats were found. That few renal carriers of Leptospira were found in the city of Sao Paulo suggests that bats are not important in the transmission of leptospirosis to humans in this, and possibly other urban settings.
潜在的钩端螺旋体病宿主的生物多样性在城市环境中低于农村环境。先前的数据表明,蝙蝠有可能在南美的亚马逊地区和澳大利亚等地充当钩端螺旋体的携带者。然而,对于蝙蝠在南美的城市环境中对钩端螺旋体病的贡献知之甚少。本研究旨在检验以下假设,即在巴西圣保罗市,感染钩端螺旋体的蝙蝠是人感染钩端螺旋体病的传染源。在圣保罗市的不同地区捕获的 343 只蝙蝠中有 6 只(182 只食虫,161 只食果或花蜜)聚合酶链反应(PCR)检测为致病性钩端螺旋体阳性;未发现血清阳性蝙蝠。在圣保罗市发现的肾脏携带钩端螺旋体的蝙蝠很少,这表明蝙蝠在该城市和可能在其他城市环境中,对人感染钩端螺旋体病的传播作用不大。