Gordon J C, Angrick E J
Am J Vet Res. 1986 Jul;47(7):1464-7.
Effects of various environments on the infectivity of canine parvovirus-2 (CPV-2) were studied. When CPV-2 was subjected to several controlled indoor environments, the virus remained infective at approximate initial inoculation amount (median tissue culture infective dose [TCID50] = 10(5.5)/ml) for 12 months at temperatures less than -20 C, decreased to TCID50 of 10(2.3)/ml by 12 months at 4 C, and had a TCID50 of less than 10(1)/ml at room temperature (20 C) or higher in less than 2 months. The CPV-2 subjected to outdoor environments was not infective beyond 5 months, except that kept in areas protected from sunlight and drying conditions. The virus surviving in the outdoor environments was not infective for study dogs, whereas the virus maintained at less than 20 C was.
研究了各种环境对犬细小病毒2型（CPV - 2）感染性的影响。当CPV - 2置于几种受控的室内环境中时，在温度低于 - 20℃时，病毒在约初始接种量（半数组织培养感染剂量[TCID50]=10^(5.5)/ml）下可保持感染性12个月；在4℃时，12个月内降至TCID50为10^(2.3)/ml；在室温（20℃）或更高温度下，不到2个月TCID50就低于10^(1)/ml。暴露于室外环境的CPV - 2，除保存在免受阳光和干燥条件影响的区域外，超过5个月就没有感染性了。在室外环境中存活的病毒对受试犬没有感染性，而保存在低于20℃的病毒则有感染性。
