Open AccessCovid 19: Need of vaccine induced herd immunity in India
Author(s) -
D. Pragathi,
Dinesh Kumar Kukunuri,
Venkatesh Paturu
Publication year - 2020
Publication title -
international journal of research in hospital and clinical pharmacy
Language(s) - English
Resource type - Journals
ISSN - 2582-0672
DOI - 10.33974/ijrhcp.v2i4.260
Subject(s) - herd immunity , herd , immunity , pandemic , covid-19 , basic reproduction number , reproduction , biology , demography , vaccination , medicine , immunology , veterinary medicine , immune system , disease , environmental health , infectious disease (medical specialty) , population , sociology , ecology , pathology
Herd immunity is a traditional concept nothing but a form of indirect protection from contagious diseases. In a mass community, there is no need to be everyone immune. If a high proportion of members in the community are immune, spreading of the disease is reduced even to non-immunized patients. This study offers an overview of vaccine-induced herd immunity importance in this pandemic and how it will be achieved. Methodology: The data of basic reproduction number Ro values for COVID 19 of 10 weeks in India which were estimated by Ro package in R software are extracted from a research article (reference no.4) and taken the mean Ro value due to fluctuations as well as to avoid great errors by using MS Excel. Herd immunity is calculated by using a standard equation stated as R=(1-Pc )(1-P1)Ro Results: The mean basic reproduction number Ro for COVID 19 in India was calculated as 1.671 by using MS excel and the herd 3 determines that only 40.16% proportion of individuals need to immunized through a vaccine to achieve herd immunity towards COVID 19 in India. Conclusion: This study estimates mean base reproduction Ro as 1.671 and Herd Immunity Threshold (HIT) as 40.16% by using past data. This study concludes that vaccine-induced herd immunity helps us by playing a key role to eliminate novel coronavirus.