泰國官方今天證實(shí)，自十月14日以來，泰國著名的動物園是拉查龍虎園有23只成年虎因感染禽流感而死亡，估計(jì)病毒可能來自老虎的主要食物雞。另有30多只老虎出現(xiàn)與禽流感一樣的癥狀。新華社報(bào)道如下：Lab test confirmed that 23 tigers in a private zoo in eastern Thailand have died of infecting with avian influenza^{1 virus, officials said here on Tuesday.
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Tigers in the private zoo started to show flu symptoms since last Thursday and altogether 23 have died until Tuesday.}

Symptom表示：預(yù)兆，征候；癥兆，癥候，比如：Fever is a symptom of many illnesses.（發(fā)燒是很多疾病的癥兆。）和symptom有關(guān)的詞組有：clinical symptom（臨床癥狀）；well-defined symptom（明顯癥狀）；deficiency symptom（營養(yǎng)缺少癥狀）；deficient symptom（內(nèi)分泌缺少癥狀）；poisoning symptom（中毒癥狀）；eruption symptom（噴發(fā)預(yù)兆）；premonitory symptoms（地震預(yù)兆）等。

據(jù)了解，坐落于泰國春武里府東部的是拉查龍虎園距離首都曼谷約80公里，是游客前往海濱城市芭堤亞途中必游覽的景點(diǎn)之一。動物園內(nèi)有400只老虎，為預(yù)防禽流感病毒擴(kuò)散，動物園從今天起暫時(shí)關(guān)閉。