| toxigenic type d pasteurella multocida in new south wales pig herds--prevalence and factors associated with infection. | between march and july 1987, a study was undertaken to determine the prevalence of and factors associated with toxigenic type d pasteurella multocida infection in new south wales pig herds. toxigenic type d p. multocida was isolated from the nasal cavities of pigs in one (2%) of 50 randomly selected herds. toxigenic isolates were also recovered from 2 (8%) of a separate group of 25 herds that had purchased pigs from a known infected piggery in south australia (herd sa). snout abnormalities were ... | 1989 | 2818358 |