Department of Animal and Plant Pathology of The Rockefeller Institute for Medical Research, Princeton, New Jersey.
J Exp Med. 1938 Apr 30;67(5):739-48. doi: 10.1084/jem.67.5.739.
Antibodies capable of neutralizing human influenza virus were present in the sera of old swine on two New Jersey institution farms, but absent from the sera of young swine on the same farms. The old animals had lived through the winter of 1936-37 in which outbreaks of upper respiratory tract disease were prevalent among the human inmates of the two institutions, while the young swine studied were born long after these outbreaks. It is believed that the swine whose sera neutralized human influenza virus had undergone an unrecognized human influenza virus infection acquired from man. The possible bearing of these observations upon the theory that swine influenza was originally of human origin is discussed.
在新泽西州两个机构农场的老猪血清中存在能够中和人类流感病毒的抗体，但在同一农场的小猪血清中则不存在。这些老动物在 1936-37 年的冬季幸存下来，当时两个机构的囚犯中上呼吸道疾病流行，而研究中的小猪则是在这些疫情之后出生的。人们认为，那些血清能够中和人类流感病毒的猪已经感染了一种来自人类的未被识别的流感病毒。这些观察结果可能对猪流感最初起源于人类的理论产生影响。
