Baxby D, Osborne A D
J Hyg (Lond). 1979 Dec;83(3):425-8. doi: 10.1017/s0022172400026255.
Serological studies on cows recovered from natural cowpox indicated that Haemagglutinin-Inhibiting (HAI) antibody persisted for at least 27 weeks, and Virus Neutralizing (VN) antibody persisted for at least 98 weeks.
对从自然感染牛痘中康复的奶牛进行的血清学研究表明,血凝抑制(HAI)抗体至少持续27周,病毒中和(VN)抗体至少持续98周。