Mulvey J J, Bech-Nielsen S, Haskins M E, Jezyk P F, Taylor H W, Eugster A K
J Am Vet Med Assoc. 1980 Oct 15;177(8):695-8.
In a nationwide survey from January 1978 through September 1979, acute parvovirus-induced myocarditis was identified in 76 of 147 (52%) pups in 19 litters. The affected pups were from 12 states. Birth of all pups registered with the American Kennel Club during this period increased during the spring months, peaking in May, which was correlated in 4 to 8 weeks with the greatest number of cases in the study. Serologic data available for 4 dams, for 6 of their surviving pups, and for 3 contact pups indicated that all had been exposed to parvovirus. In 2 kennels, cases of acute myocarditis were preceded within 2 months by cases of severe gastroenteritis in older litters on the same premises.
在1978年1月至1979年9月的一项全国性调查中，19窝147只幼犬中有76只（52%）被确诊患有急性细小病毒诱发的心肌炎。受影响的幼犬来自12个州。在此期间，向美国养犬俱乐部登记的所有幼犬的出生数量在春季月份有所增加，5月份达到峰值，这与该研究中病例数最多的情况在4至8周内相关。4只母犬、其6只存活幼犬以及3只接触幼犬的血清学数据表明，它们都接触过细小病毒。在2个犬舍中，同一犬舍内年龄较大幼犬的严重肠胃炎病例在2个月内先于急性心肌炎病例出现。
