Polysaccharide antigens of Pasteurella multocida serotype B:2,5 were identified by immunodiffusion and immunoelectrophoresis. The immunodiffusion tests showed that the first line, near the well containing the whole polysaccharide extract (WPE) represent LPS because this precipitation line occurs by diffusion using antiserum raised against P. multocida serotypes 8:2,5 and E:2,5 but not with 8:3,...

Pasteurella multocida serotype B:2 is the etiological agent of haemorrhagic septicaemia (HS) in cattle and buffaloes, a disease that causes significant economic losses to the dairy industry in India. Several killed vaccines are in uses that provide protection to limited period of time. The aim of this study was to generate an attenuated strain of Pasteurella multocida P52 by targeted gene knock...

Lumpfish are used routinely as cleaner fish to delouse farmed Atlantic salmon ( Salmo salar ) and often translocated globally. In September 2021, an aquaculture production business in Dorset, England experienced considerable mortalities consignments of lumpfish Cyclopterus lumpus imported from Norway. Following suspicion infection with virus (CLuV) by a veterinarian, commercial testing provided...

Genetic diversity among 86 Pasteurella multocida isolates was investigated by comparative sequence analysis of a 1468 bp fragment of the 16S rRNA gene. The strains included 79 field isolates recovered from birds (poultry) (22), cattle (21), pigs (26) and sheep (10) within England and Wales, four Asian isolates associated with bovine haemorrhagic septicaemia, and the type strains of the three su...

pasteurella multocida (p. multocida) is an important pathogen of various domestic animals. the outer membrane proteins (omps) play a major role in pathogenesis and immunogenicity of p. multocida. the aim of the study was to develop indirect enzyme linked immuno sorbant assay (elisa) based on omps to ascertain the antibody titers in animals post-infection or to gauge the potency of vaccine. the ...

The authors provide examples of emergency programmes which have been successful in eradicating or controlling certain diseases of aquatic animals. The paper is divided into four parts. The first part describes the initial isolation of viral haemorrhagic septicaemia (VHS) virus in North America in the autumn of 1988 from feral adult chinook (Oncorhynchus tshawytscha) and coho salmon (O. kisutch)...