Schenone H, del C Contreras M, Salinas P, Sandoval L, Rojas A, Villarroel F
Departamento de Parasitología, Universidad de Chile, Santiago.
Bol Chil Parasitol. 1995 Jul-Dec;50(3-4):84-6.
Chagas' disease is endemic in rural-periurban sections of the northern half of Chile which includes the first seven political-administrative regions of the country (18 degrees 30'-34 degrees 36' South lat.). Data concerning to the results of an indirect hemagglutination test for Chagas' disease performed to 15,418 rural-periurban and 45,119 urban inhabitants fron the chagasic endemic regions are presented. Migrations from rural-periurban to urban areas have contributed to the dissemination of Trypanosoma cruzi infection. General rates of infection for rural-periurban (r-p) and urban (u) sections were 16.7% and 1.9% respectively. The higher prevalence rates were detected in Region III with 27.2% (r-p) and 3.9 (u) and Region IV with 24.7% (r-p) and 3.5% (u), while the lower prevalence rates corresponded to Region VI with 7.0% (r-p) and 0.8% (u). Serological positivity increased parallelly with age in all regions.
恰加斯病在智利北部的农村-城郊地区流行，该地区包括该国前七个政治-行政区（南纬18度30分至34度36分）。本文呈现了对来自恰加斯病流行地区的15418名农村-城郊居民和45119名城市居民进行恰加斯病间接血凝试验的结果数据。从农村-城郊向城市地区的迁移导致了克氏锥虫感染的传播。农村-城郊（r-p）和城市（u）地区的总体感染率分别为16.7%和1.9%。在第三大区，农村-城郊地区感染率为27.2%，城市地区为3.9%；在第四大区，农村-城郊地区感染率为24.7%，城市地区为3.5%，这两个大区的感染率较高；而在第六大区，农村-城郊地区感染率为7.0%，城市地区为0.8%，感染率较低。在所有地区，血清学阳性率均随年龄增长而升高。
