M.A.A. Sarah , N.T. Mekki , M.O. Elhaj , M.O. Halima , M.M. Omer , M.E. Hamid , M.A. Abbas , A Comparative Study on the Virulence of Pasteurella multocida Local Sudanese Vaccine Strains, Veterinary Research, Volume 1,Issue 4, 2007, Pages 84-87, ISSN 1993-5412, vr.2007.84.87, (https://makhillpublications.co/view-article.php?doi=vr.2007.84.87) Abstract: The purpose of this study, was to compare the virulence between the two local Sudanese strains of Pasteurella multocida B and E. The virulence experiment has been conducted in calves and rabbits. The calves and rabbits were divided into three groups; group (I) was infected with strain B, group (II) was infected with strain E and group (III) was determined as control. The finding of this study, showed that P. multocida local Sudanese vaccine strain B is more virulent than strain E. Keywords: Virulence;Pasteurella multocida;rabbits;calves;Sudanese strains