Beenu Jain*¹, Anuj Tewari² and Surender Kumar Kadian¹

¹Department of Veterinary Microbiology, College of Veterinary Sciences, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India
²Department of Veterinary Microbiology, College of Veterinary and Animal Sciences, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, India

*Corresponding Author: Beenu Jain, Department of Veterinary Microbiology, College of Veterinary Sciences, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India.

Received: January 13, 2021; Published: January 31, 2022

Abstract

In this study, serum samples from single vaccinated and multiple vaccinated animals, against Foot-and-mouth disease (FMD) were collected from field buffaloes. Samples with titre more than 1.4 in LPBE were selected for measuring antibody avidity. The study was conducted to compare the actual status of the protective antibody generated after vaccination in single and multiple vaccinated animals. The binding affinity of these antibodies were tested using an avidity ELISA. It was found that even after multiple vaccination in some of the animals the avidity was low whereas some of the single vaccinated animals showed high avidity than the multiple vaccinated animals. We conclude that multiple vaccination with strong antibody titre may not be always a true indicator of strong protective response. Hence, regular post-vaccination monitoring of antibody avidity needs to be done where there is a high virus circulation as a measure of herd immunity.

Keywords: Avidity ELISA; Foot-and-Mouth Disease; Post-Vaccination Monitoring; Herd Immunity

References

1. Knight-Jones TJD and Rushton J. “The economic impacts of foot and mouth disease - What are they, how big are they and where do they occur?” Preventive Veterinary Medicine 3-4 (2013): 161-173.
2. Lavoria M ángeles., et al. “Avidity and subtyping of specific antibodies applied to the indirect assessment of heterologous protection against Foot-and-Mouth Disease Virus in cattle”. Vaccine48 (2012): 6845-6850.
3. McCullough KC., et al. “Immune protection against foot-and-mouth disease virus studied using virus-neutralizing and non-neutralizing concentrations of monoclonal antibodies”. Immunology. 58.3 (1986): 421-428.
4. McCullough KC., et al. “Protective immune response against foot-and-mouth disease”. Journal of Virology 4 (1992): 1835-1840.
5. Mulcahy G., et al. “Maturation of functional antibody affinity in animals immunised with synthetic foot-and-mouth disease virus”. Research in Veterinary Science 2(1992):133-140.
6. Scicluna LA., et al. “Qualitative assessment of the humoral immune status against FMDV in post-vaccination cattle”. Vaccine20-22 (2001): 2975-2986.
7. Jain B., et al. “A novel approach for estimation of anti-FMDV protective immunity generated in multiple vaccinated field animals”. Acta Virologica (2022).
8. Bachmann MF., et al. “The role of antibody concentration and avidity in antiviral protection”. Science 5321 (1997): 2024-2027.
9. Franco Mahecha OL., et al. “Single dilution Avidity-Blocking ELISA as an alternative to the Bovine Viral Diarrhea Virus neutralization test”. Journal of Virological Methods2 (2001): 228-235.

Citation

Citation: Beenu Jain., et al. “Comparative Study of Antibody Avidity in Single and Multiple Vaccinated Animals Against Foot-and-Mouth Disease". Acta Scientific Veterinary Sciences 4.2 (2022): 101-104.

Copyright

Copyright: © 2022 Beenu Jain., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.