Abarca V Katia, López Del P Javier, González A Patricia, Dabanch P Jeannette, Torres H Marisa, Solari G Verónica, Perret P Cecilia
Laboratorio de Infectología y Virología Molecular, Pontificia Universidad Católica de Chile, Santiago, Chile.
Rev Chilena Infectol. 2008 Oct;25(5):358-61. Epub 2008 Oct 1.
To find more evidence of human exposure to Anaplasma sp in Chile, we studied 108 contacts of dogs with canine ehrlichiosis (CE) (risk group) and 61 persons without tick or CE cases contact (control group). A survey including risk factors and history of diseases compatible with ehrlichiosis/ anaplasmosis was applied to the risk group. Serum IgG anti-Anaplasma sp antibodies were determined in both groups.
A significant difference was found in the prevalence of anti-Anaplasma sp antibodies in the risk group compared with the control group (18,5 versus 3,3%), p < 0,005. No risk factors associated to seropositivity were found, nor persons with history suggesting ehrlichiosis/anaplasmosis. Ninety four percent of the houses of the risk group had tick infestation.
A greater risk of exposition to Anaplasma sp is documented in people living in close contact with CE cases and in houses with tick infestation.
为了在智利找到更多人类接触无形体属的证据，我们研究了108名犬埃立克体病（CE）犬只的接触者（风险组）和61名无蜱虫接触或CE病例接触者（对照组）。对风险组进行了一项包括风险因素和与埃立克体病/无形体病相符疾病史的调查。在两组中均测定了血清抗无形体属IgG抗体。
与对照组相比，风险组中抗无形体属抗体的患病率存在显著差异（18.5%对3.3%），p < 0.005。未发现与血清阳性相关的风险因素，也未发现有埃立克体病/无形体病病史的人。风险组94%的房屋有蜱虫侵扰。
记录表明，与CE病例密切接触的人和有蜱虫侵扰房屋中的人接触无形体属的风险更高。
