Occurrence of Panstrongylus megistus (Burmeister, 1835) in an area under entomological surveillance in the Southeast Region of Brazil

Abstract INTRODUCTION: Panstrongylus megistus is the main triatomine involved in the human transmission of Trypanosoma cruzi in Minas Gerais, Brazil. We analyzed the occurrence of triatomines in the Itaúna micro-regions for healthcare. METHODS: Data were collected as part of routine entomological surveillance activities, including the species identity, capture site, developmental stage, and trypanosome infection. RESULTS: In total, 503 specimens from five species were captured (495 P. megistus). Adults were mainly captured by residents inside their homes, whereas nymphs were mostly captured by public health professionals outside. CONCLUSIONS: The epidemiologically important triatomine, P. megistus, continues to persist in our study region.

摘要：研究背景：大锥蝽（Panstrongylus megistus）是巴西米纳斯吉拉斯州克氏锥虫（Trypanosoma cruzi）人际传播的主要媒介锥蝽（triatomine）。本研究针对艾托乌纳微区域的锥蝽发生情况开展公共卫生医疗相关分析。
方法：研究数据取自常规昆虫学监测活动，采集信息涵盖物种鉴定结果、捕获地点、发育阶段以及锥虫感染情况。
结果：本次研究共捕获5个物种的锥蝽标本共计503只，其中495只为大锥蝽（P. megistus）。成虫多由居民在住宅内捕获，而若虫则多由公共卫生专业人员在户外捕获。
结论：本研究区域内，具有流行病学重要性的媒介锥蝽大锥蝽仍持续存续。