Nava Santiago, Caparrós José A, Mangold Atilio J, Guglielmone Alberto A
Instituto Nacional de Tecnología Agropecuaria, Estación Experimental Agropecuaria Rafaela, Santa Fe, Argentina.
Medicina (B Aires). 2006;66(3):225-8.
Ticks infesting humans were collected from September 2004 to August 2005 in Northwestern Córdoba in an area with a southern limit in the locality of Dean Funes (30 degrees 25'S 64 degrees 20'W) and San José de las Salinas (30 degrees 00'S 64 degrees 37'W) in the North. The collections consisted in ticks found attached on man obtained from three sources: 1) specimens fixed on two workers during two successive days per month of field work in the northern part of the area which belongs to Western Chaco district of the phytogeographical Chaco domain, 2) ticks attached to a man working in a farm close to Dean Funes in the Chaco Serrano district of the Chaco domain and, 3) ticks collected from a collaborator visiting daily a suburban property with dogs in the vicinities of Dean Funes. Most ticks collected were larvae, nymphs and adults of Amblyomma neumanni from the Chaco Serrano district where a nymph of Otobius megnini was also found on man. Adults of Amblyomma parvum and Amblyomma tigrinum were detected feeding on humans in the Western Chaco district and in the property close to Dean Funes, respectively. Amblyomma neumanni was absent on man from December to April while most specimens of A. parvum and A. tigrinum were collected during summer. Their role as potential vector of tick-transmitted diseases in the area is unknown.
2004年9月至2005年8月，在科尔多瓦省西北部进行了人体蜱虫采集工作，该区域南界位于迪恩富内斯镇（南纬30度25分，西经64度20分），北界位于圣何塞德拉斯萨利纳斯镇（南纬30度00分，西经64度37分）。采集的蜱虫来自三个来源：1）在该区域北部（属于植物地理查科域的西部查科区）每月连续两天固定在两名工人身上的标本，2）附着在查科域查科塞拉诺区迪恩富内斯附近一个农场工作的男子身上的蜱虫，3）从一名每天访问迪恩富内斯附近有狗的郊区房产的合作者身上采集的蜱虫。采集到的大多数蜱虫是查科塞拉诺区的纽曼花蜱的幼虫、若虫和成虫，在该区域还发现一名男子身上有一只梅氏钝缘蜱若虫。在西部查科区和迪恩富内斯附近的房产中，分别检测到微小花蜱成虫和豹纹花蜱成虫在人体上取食。12月至4月期间，纽曼花蜱未在人体上发现，而大多数微小花蜱和豹纹花蜱标本是在夏季采集的。它们作为该地区蜱传疾病潜在传播媒介的作用尚不清楚。
