High Hydrostatic Pressure for Development of Vaccines
2009
Shearer, Adrienne E.H. | Kniel, Kalmia E.
Disease management in the food industry is complex and includes use of good hygienic practices, antimicrobials, and immunization. Vaccines are available against many, but not all, disease agents affecting animals reared for human food. Fewer vaccines are currently licensed and widely available for human foodborne pathogens. Increased resistance to antimicrobials provides additional impetus to develop new vaccines. In addition to the need for new vaccines, new methods of vaccine production are desired. Some current methods of vaccine production can involve use of hazardous chemicals, provide inconsistent results, or present risk to vaccine recipients with certain allergies. The efficacy of high hydrostatic pressure (HHP) for inactivation of a variety of foodborne pathogenic microorganisms has been well established, and some of these microorganisms have been demonstrated to retain immunogenic properties, suggesting HHP may have application for the development of vaccines. Studies on the effect of HHP on infectivity and immunogenicity of various viruses, a protozoan parasite, and one bacterial species are presented. Control of several of these pathogens is important for animal health and economic stability in several sectors of the food industry. The research to date on the potential for vaccine development by HHP is presented.
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