Pasteurella multocida

Pasteurella multocida is a Gram-negative, nonmotile, penicillin-sensitive coccobacillus from the family Pasteurellaceae. P. multocida is the cause of a range of diseases in mammals and birds, including fowl cholera in poultry, atrophic rhinitis in pigs, and bovine hemorrhagic septicemia in cattle and buffalo. It can also cause a zoonotic infection in humans, which typically is a result of bites or scratches from domestic pets. Many mammals (including domestic cats and dogs) and birds harbor it as part of their normal respiratory microbiota, rendering them silent sources of infection.