臺灣中部地區流浪犬之心絲狀蟲感染狀況之變化

1993年11月至1994年10月檢查293隻流浪犬之血液，檢獲幼絲蟲陽性犬92隻，陽性率為31.40%。隨機選擇47隻流浪犬進行剖檢，其中幼絲蟲陽性者21隻(44.68%)，而成蟲陽性者33隻(70.21%)。這些結果顯示有25.53%流浪犬係潛伏感染，由此推測所有流浪犬之心絲蟲成蟲陽性率約為56.93%。1998年8月至1999年7月收集218之流浪犬，其中雄性115隻、雌性103雙。血液中幼絲蟲陽性者72隻，陽性率為33.03%。心臟剖檢後發現132隻流浪犬心臟有心絲蟲成蟲存在，感染率為60.55%。雄犬感染率為62.61% (72/115)、雌犬感染率為58.25% (60/103)。患犬10 μL血液內之幼絲蟲數為1至635條，心臟內之成蟲數為1至49條不等。由結果顯示台灣中部地區流浪犬心絲蟲之感染率在逐年持續增加中，因此在公共衛生學上之潛在危險性頗值得密切注意。

關鍵字

犬心絲蟲；犬心絲蟲症；流浪犬；感染率；幼絲蟲

並列摘要

From November 1993 to October 1994, 293 blood samples from stray dogs were collected and examined for the microfilariae of Dirofilaria immitis. Thirty-one point four percent (92 dogs) were found infected under microscopic examination. Of the 47 randomly selected stray dogs that were dissected, 21 (44.68%) exhibited microfilariae in blood examinations and adult worm were found in 33 dogs (70.21 %). These findings indicated that 25.53% were occult infections and the prevalence within all stray dogs should be 56.93%. From August 1998 to July 1999, 218 stray dogs (115 males and 103 females) were collected and examined. The number of positive results from blood tests and autopsy were 72 and 132, respectively. The overall prevalence was 60.55%, 62.61% in males and 58.25% in females. The number of microfilaria in 10 μL blood and adult worms in the hearts of infected dogs ranged from 1 to 635 and from 1 to 49, respectively. These results indicate that the prevalence of dirofilariasis in stray dogs from central Taiwan has increased continuously in recent years. Therefore, the public should be informed of the potential danger from heartworm infection through stray dogs.

並列關鍵字

Dirofilaria immitis ； Dirofilariasis ； Stray dogs ； Prevalence ； Microfilariae

國際替代計量

臺灣中部地區流浪犬之心絲狀蟲感染狀況之變化

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