Katoch S, Verma L, Sharma M, Asrani RK, Kumar S, Chahota R, Verma S. Experimental Study of the Pathogenicity of
Pasteurella multocida Capsular Type B in Rabbits.
J Comp Pathol 2015. [PMID:
26220707 DOI:
10.1016/j.jcpa.2015.06.005]
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Abstract
The increased frequency of isolation of Pasteurella multocida capsular type B from rabbitries in north-western India prompted this investigation into the role of this organism in inducing disease in rabbits. Ten rabbits were divided into two groups of five animals. Group I rabbits were infected intranasally (IN) with 1 ml of inoculum containing 2 × 10(5) colony forming units/ml, while rabbits in group II were given 1 ml phosphate buffered saline IN. The rabbits in group I developed respiratory distress, increased rectal temperature and severe dyspnoea, with death occurring 24-48 h post infection. The main pathological findings were severe congestion and haemorrhage in the trachea, fibrinopurulent pneumonia, bacteraemia and septicaemia. The nasal secretions of all group I animals contained P. multocida. These observations indicate that in addition to P. multocida capsular types A and D, P. multocida capsular type B can also be highly pathogenic for rabbits.
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