[First case of an outbreak of hemorrhagic septicemia caused by Pasteurella multocida serotype B6 in northern Cameroon].

For the first time in Cameroon, a strain of Pasteurella multocida serotype B6 was isolated from a haemorrhagic septicaemia outbreak in Zebu cattle in the area of Maga (Far Northern Province). Through the mouse protection test, evidence was given that there was no cross protection between this strain and the strain of Pasteurella multocida serotype E6 which is used as an inactivated vaccine in Cameroon. Hence, it is recommended to use a combined vaccine including both serotypes for the Central and West African countries.