DH Tan, YS Gong, SC Ou, CY Yang… - Avian …, 2021 - meridian.allenpress.com
Avibacterium paragallinarum has been subtyped into three serogroups (A, B, and C) and
nine serovars (A-1, A-2, A-3, A-4, B-1, C-1, C-2, C-3, and C-4) according to the Page and …