Publications by authors named "S B Shivachandra"
Developing an effective vaccine for haemorrhagic septicaemia (HS) in cattle and buffaloes is urgently needed. While preferred for their safety, achieving sufficient, cross-protective, and long-lasting immunity is still challenging when administering inactivated vaccines. This study aimed to assess the efficacy of four inactivating components comprising three inactivating agents: (1) Binary ethylenimine (BEI), (2) Formalin, (3) a combination of BEI and Formalin, and (4) Hydrogen peroxide (HO), in inactivating Pasteurella multocida to enhance HS vaccine potency.
View Article and Find Full Text PDFHighly pathogenic avian influenza (HPAI) outbreaks have repeatedly occurred in two districts of Kerala state, India, over the last few years. The outbreaks in the wetland areas coincided with the arrival of migratory birds. At the time, the factors responsible for local transmission in ducks were not known.
View Article and Find Full Text PDFA total of 52 Pasteurella multocida strains of capsular serogroups (A, B and D) were screened for anti-quorum sensing activity against Chromobacterium violaceum. Of which, 12 strains of serogroups A were found to possess anti-quorum sensing activity. Inhibition activity was highest for strain NIVEDIPm9 and lowest for strain NIVEDIPm30 based on zone of pigment inhibition.
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- Anthrax, caused by the bacterium Bacillus anthracis, is a significant zoonotic disease in livestock and humans, especially in Karnataka, India, necessitating a better understanding of its outbreaks.
- The study aims to analyze the relationship between anthrax outbreaks from 1987-2016 and climatic factors, using advanced statistical methods to develop predictive models for public health and vaccination strategies.
- Findings indicate that anthrax outbreaks are positively influenced by rainfall and wet days, with a long-term cycle of 6-8 years linked to Sea Surface Temperature anomalies, highlighting the importance of climate in prevention efforts.
Objective: Flagellin protein, an integral component of flagella, provides motility to several bacterial species and also acts as a candidate antigen in diagnostics and subunit vaccines. The bulk production of flagellin with retention of all conformational epitopes using recombinant protein technology is of paramount importance in the development of pathogen-specific immuno-assays and vaccines. We describe the production of highly soluble and immuno-reactive rFliA(C) protein of Clostridium chauvoei, a causative agent of blackleg or black quarter (BQ) affecting cattle and small ruminants worldwide.
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