台中地區流浪犬心絲蟲感染疫情之調查

本研究之目的在調查台灣台中地區流浪犬隻感染犬心絲蟲之情形，以期做為疫情控制之參考。自1998年11月底至2000年3月初之間隨機採樣152隻經安寧處理後之流浪犬為調查對象。經心臟剖檢，犬心絲蟲成蟲感染率為55.9% (85/152)；公犬感染率為48.2% (41/85)；母犬感染率為51.8% (44/85)。犬隻性別與感染率並無顯著相關性(r=0.04; P＞0.05)。全血直接抹片法檢查發現感染犬隻中微絲蟲之檢出率為51.8% (44/85)。患犬心臟含成蟲數由1隻至55隻不等。主要感染犬族群心肺發現之成蟲數約≦5隻。所有感染犬隻中公成蟲數平均2.7隻／犬；母成蟲數平均3.0隻／犬；單位感染之犬隻佔13% (11/85)。感染犬隻年齡與品種分布以2~5歲之中型(10~15 kg)混種犬為主。綜合上述調查結果，台灣台中地區犬心絲蟲感染情況嚴重。

關鍵字

犬心絲蟲症；感染率；人畜共通傳染病

並列摘要

To understand the present status of Dirofilaria immitis infection among stray dogs inhabited in Taichung area, postmortem examination was conducted in randomly chosen individuals during 1998-2000. Blood samples were detected for microfilariae on microscopy examinations of repeated direct wet smears. The percentage of infected dogs with heartworm resided in cardiopulmonary system was proven to be 55.9% (85/152) of which 48.2% (41/85) were male dogs and 51.8% (44/85) were the female, respectively. The correlation between gender of dog and infection rate was not significant (r=0.04, P＞0.05). Of the infected, 51.8% (44/85) were detected to be microfilaremia. The number of worm burden was ranged from 1 to 55. And, most of the dogs carried less than 6 worms. Single sex adult worm residence was 13% (11/85) of all the infected. Infected dogs with estimated age within 2 to 5 years represented the majority. Dogs weighed within 10 to 15 kilograms of the mixed breed represented the major infected group. Conclusively, the present data confirm the prevalence and severity of Dirofilariasis among stray dogs in Taichung area.

並列關鍵字

Dirofilariasis ； Infection rate ； Zoonosis

國際替代計量

台中地區流浪犬心絲蟲感染疫情之調查

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