Departamento de Ecología de Agentes Patógenos, Hospital General Dr. Manuel Gea González, C.P. 14080, Mexico City, Mexico.
Cuerpo Académico de Cuencas, Humedales y Sustentabilidad, Departamento de Ciencias de la Naturaleza, Centro Universitario del Sur, Universidad de Guadalajara, Av. Enrique Arreola Silva 883, 49000, Ciudad Guzmán, Jalisco, México.
J Med Entomol. 2022 Nov 16;59(6):2150-2157. doi: 10.1093/jme/tjac078.
Here, we report a new record of Triatoma infestans (Klug) in Mexico after 50 years and provide a brief description of the discovery area. Fifty-nine specimens (71.2% adults) of the introduced species were collected from the peridomestic areas of a single house in the port of Manzanillo in the state of Colima, Mexico. Thirty-one specimens (52.5%) were collected from the exterior walls of the house and were apparently attracted to light. The other specimens (47.5%) were associated with chickens. No specimen was infected with Trypanosoma cruzi Chagas, the causative agent of Chagas disease, possibly because they were feeding on chickens. We speculate that the introduced species travelled from South America to Mexico via seed shipment in a twenty-foot equivalent unit (TEU) maritime container. Because Mexican phytosanitary regulations demand only the cargo to be inspected, the triatomines could have escaped notice during inspection. Subsequently, as the cargo was unloaded and the TEU was stored, the triatomines likely flew to and invaded the nearby residential areas. The rediscovery of this domestic vector of T. cruzi in Mexico warrants further investigation owing to the potential risk of transmission to the inhabitants of the study area.
在这里，我们报告了 50 年来在墨西哥首次发现骚扰锥蝽（Triatoma infestans）的记录，并简要描述了发现该物种的地区。在墨西哥科利马州曼萨尼约港的一栋房子的周边地区，共采集到 59 只（71.2%为成虫）传入物种的样本。其中 31 只（52.5%）采集自房屋外墙，显然是被灯光吸引而来。其他样本（47.5%）与鸡有关。没有样本感染恰加斯病的病原体克氏锥虫（Trypanosoma cruzi Chagas），这可能是因为它们以鸡为食。我们推测，传入的物种是通过二十英尺当量单位（Twenty-foot Equivalent Unit，TEU）海运集装箱中的种子运输从南美洲到达墨西哥的。由于墨西哥的植物检疫法规只要求检查货物，因此在检查过程中可能会忽略这些锥蝽。随后，随着货物的卸载和 TEU 的储存，这些锥蝽可能会飞到附近的居民区并入侵。鉴于骚扰锥蝽有可能传播给研究区域的居民，在墨西哥重新发现这种传播恰加斯病的媒介需要进一步调查。
