Relationship of Human and Bovine Strains of Myxovirus Para-Influenza 3

SummaryGuinea pigs infected intra-nasally with human(HA-1) and bovine(SF-4) strains of para-influenza 3 virus produced 4-fold or greater HI, N and CF antibodies to the homologous strain than to the heterologous strain. Children and cattle showed similar species-linked responses following infection with para-influenza 3 viruses. Human and bovine strains of the virus originating from various states and foreign countries and isolated in different years were shown to react in the same manner as the HA-1 and SF-4 prototype strains.