Serotypes A1 and A2 of Mannheimia haemolytica are susceptible to genotypic, capsular and phenotypic variations in contrast to T3 and T4 serotypes of Bibersteinia (Pasteurella) trehalosi.

Abstract excerpt

Mannheimia haemolytica and Bibersteinia (Pasteurella) trehalosi are the most common bacterial isolates that cause pulmonary diseases in ruminants worldwide. The disease is determined by specific serotypes found in cattle and small ruminants. The molecular epidemiology of strains involved in disease is important in the control of outbreaks as well as in the preparation of vaccines. This study aimed to detect the...

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