Norman J O, McClurkin A W, Stark S L
Can J Comp Med. 1970 Apr;34(2):115-7.
Sera of weaned puppies from a hysterectomy-derived, specific pathogen free (SPF) closed dog colony did not contain antibodies against a TGE-associated virus or a serologically related one, but sera from puppies and older dogs from open kennels did. The higher antiviral titers in serum of older dogs suggested that these animals had suffered either persistent or recurrent infections. Seventy-two puppies had no contact with swine, indicating that the virus was able to propagate independently of contact with swine.
来自子宫切除衍生的无特定病原体(SPF)封闭犬群的断奶幼犬血清中,未含有针对与传染性胃肠炎(TGE)相关病毒或血清学相关病毒的抗体,但来自开放式犬舍的幼犬和成年犬血清中含有此类抗体。成年犬血清中较高的抗病毒滴度表明这些动物曾遭受持续性或复发性感染。72只幼犬未接触过猪,这表明该病毒能够在不与猪接触的情况下独立传播。