| primary antibody responses of herons to experimental infection with murray valley encephalitis and kunjin viruses. | antibody responses of rufous night herons (nycticorax caledonicus) and little egrets (egretta garzetta) following infection with murray valley encephalitis and kunjin viruses were determined. haemagglutinin-inhibiting antibodies were first detected on day 5 or 6 after inoculation and increased rapidly, reaching maximum titres of 320 to 2560 between 10 and 20 days after inoculation. titres declined 20-320 between 60 and 120 days after inoculation, then tended to remain stationary. titres were 2- ... | 1983 | 6326725 |