Barbosa Tatiane Alves, Thiengo Silvana Carvalho, Fernandez Monica Ammon, Ramos-de-Souza Jucicleide, Gomes Suzete Rodrigues
Laboratório de Malacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil, 4365, Rio de Janeiro 21040-900, Brazil.
Programa de Pós-Graduação Stricto Sensu em Vigilância e Controle de Vetores-PPG-VCV, IOC/Fiocruz, Av. Brasil 4365, Rio de Janeiro 21040-900, Brazil.
Pathogens. 2024 Mar 15;13(3):255. doi: 10.3390/pathogens13030255.
Metastrongyloidea includes nematodes that parasitize mammals, mainly infecting their respiratory and cardiovascular systems, and are responsible for emerging zoonosis in the world. Terrestrial mollusks are their main intermediate hosts, with few exceptions. Here we present the results of a malacological survey to know the distribution of in Macapá, Amapá, in the Brazilian Amazon region, after the report of a case of eosinophilic meningitis in 2018. Mollusks were collected in 45 neighborhoods between March 2019 and February 2020. They were identified, parasitologically analyzed, and their nematodes parasites were identified based on the morphology and MT-CO1 sequencing. Infections of An. cantonensis were observed in , and . These are the first records of the natural infection of the last two species by in the Brazilian Amazon region. The angiostrongylid , which parasitizes cats, was also detected parasitizing and . This is also the first record of the slug infected by . The highest infection rates were recorded in neighborhoods where the environment conditions favor the proliferation of both mollusks and rodents. The results demonstrate the ample distribution of in Macapá and the need for surveillance and mollusk vector control in Brazil and other countries.
后圆线虫总科包括寄生于哺乳动物的线虫，主要感染其呼吸系统和心血管系统，并在全球引发人畜共患病。除少数例外情况外，陆生软体动物是它们的主要中间宿主。2018年有一例嗜酸性粒细胞性脑膜炎病例报告后，我们开展了一项软体动物学调查，以了解巴西亚马逊地区阿马帕州马卡帕市的分布情况。2019年3月至2020年2月期间，在45个社区收集了软体动物。对它们进行了鉴定、寄生虫学分析，并根据形态学和线粒体细胞色素c氧化酶亚基1（MT-CO1）测序对其线虫寄生虫进行了鉴定。在[具体物种1]、[具体物种2]和[具体物种3]中观察到广州管圆线虫感染。这是巴西亚马逊地区后两个物种自然感染广州管圆线虫的首次记录。寄生于猫的管圆线虫属线虫也被检测到寄生于[具体物种4]和[具体物种5]。这也是蛞蝓[具体物种6]感染该线虫的首次记录。在环境条件有利于软体动物和啮齿动物繁殖的社区中，感染率最高。结果表明广州管圆线虫在马卡帕分布广泛，巴西和其他国家需要进行监测并控制软体动物传播媒介。
