PMID: 15233294Jul 6, 2004Paper

Comparative immunogenecity of foot and mouth disease virus antigens in FMD-haemorrhagic septicaemia combined vaccine and FMD vaccine alone in buffalo calves

Indian Journal of Experimental Biology
Rajesh ChhabraN K Kakker

Abstract

Humoral immune response was evaluated by monitoring the serum antibody titres and virus specific IgM titres against Foot and Mouth Disease (FMD) virus antigens in serum samples obtained from different groups of calves inoculated with combined vaccine or FMD vaccine alone, on 0, 7, 14, 21, 28, 42 and 56 days post-vaccination (DPV). The cellular immune response was monitored by MTT based lymphoproliferation in peripheral blood mononuclear cell cultures. Higher liquid phase blocking (LPB) ELISA antibody titres were observed in calves receiving combined vaccine as compared to calves immunized with FMD vaccine alone with the peak titres in both the groups obtained on 21 days post-vaccination. However, the virus specific IgM titres were significantly higher in group of calves inoculated with combined vaccine than FMD vaccine alone. The lymphoproliferative responses against FMDV types O, A22 and Asia 1 in the groups receiving combined vaccine and FMD vaccine alone started increasing gradually after day 14 and reached peak levels on 28 DPV followed by a gradual decline subsequently. The group receiving combined vaccine showed higher proliferative responses on in vitro stimulation with FMD virus type O, whereas, with FMD virus type Asia...Continue Reading

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