Riemerella anatipestifer

Riemerella anatipestifer is a Gram-negative, non-motile, non-spore-forming, and rod-shaped bacterium that can infect domestic ducks, geese, turkeys, and other avian species worldwide.

In ducks, R. anatipestifer infection causes serositis, airsaculitis, meningitis, salpingitis, or septicemia with high mortality rates.

Transmission: Respiratory tract and skin wounds are speculated to play important roles in the transmission of R. anatipestifer.



  • Order: Flavobacteriales
  • Family: Flavobacteriaceae
  • Genus: Riemerella


  • ducks
  • geese