Linardi P M, Botelho J R, Cunha H C, Moreira N de S
Mem Inst Oswaldo Cruz. 1984 Apr-Jun;79(2):239-47. doi: 10.1590/s0074-02761984000200011.
A rodent ectoparasite survey was made in the city of Belo Horizonte, Minas Gerais, Brazil, from June 1980 to September 1982. The species of ectoparasites captured from 950 Rattus norvegicus norvegicus were: Xenopsylla cheopis, Ctenocephalides felis felis, Polyplax spinulosa, Laelaps nuttalli, Echinolaelaps echidninus and Atricholaelaps glasgowi, the last species only represented by three specimens interchanged with wild rodent. P. spinulosa and L. nuttalli, although cosmopolitan, are recorded for the first time in State of Minas Gerais. The sex ratio of the ectoparasites, as well as the prevalence of fleas, mites and lice on the separate sexes of rodents are presented. 66.9% of the rats were infested by mites, almost twice more than infestations by fleas and louse jointly (39%). L. nuttalli was found in great numbers and presented the highest index of infestation: 55.1%. Single infestations are as common as associated ones. P. spinulosa, contrary to L. nuttalli, rarely occurs in single infestation. Data on the distribution of the ectoparasites on the rodents are also reported. The infestation observed in Belo Horizonte is confronted with those obtained by other authors in different places.
1980年6月至1982年9月，在巴西米纳斯吉拉斯州贝洛奥里藏特市进行了一项啮齿动物体外寄生虫调查。从950只褐家鼠捕获的体外寄生虫种类有：印鼠客蚤、猫栉首蚤指名亚种、刺多乳鼠蚤、纳氏厉螨、艾氏新厉螨和格拉斯哥无前厉螨，最后一种仅由与野生啮齿动物交换的3个标本代表。刺多乳鼠蚤和纳氏厉螨虽然分布广泛，但首次在米纳斯吉拉斯州被记录。文中给出了体外寄生虫的性别比例，以及啮齿动物不同性别上跳蚤、螨虫和虱子的感染率。66.9%的大鼠感染了螨虫，几乎是跳蚤和虱子联合感染率（39%）的两倍。纳氏厉螨数量众多，感染指数最高：55.1%。单一感染与混合感染一样常见。与纳氏厉螨相反，刺多乳鼠蚤很少出现单一感染。文中还报告了体外寄生虫在啮齿动物身上的分布数据。将在贝洛奥里藏特观察到的感染情况与其他作者在不同地方获得的情况进行了对比。
