E-ISSN 2534-9821
 

Original Research
Online Published: 10 Oct 2021
 


Seroepidemiology of Spike protein antibodies to SARS CoV-2 in vaccinated & non vaccinated Indian population

Alap Christy, Rohini Kelkar, Megha Kambli, Jyotsna Naik, Raj Jatale, Pratip Patiyane, Madhuri Bhosale, Kirti Chadha, Nilesh Shah, Puneet Kumar Nigam.


Abstract
Introduction:
Spike protein antibodies are of prime interest considering their neutralizing capacity for SARS CoV2. Data on seroepidemiology of spike antibody titres in the Indian population is scarce. It's need of the hour to understand the same.
Materials & Method:
We analysed the clinical data of patients who opted for the Quantitative Spike protein IgG antibody test. The data was sub-grouped as per demographic details, vaccination history & history of past COVID infection.
Results:
Overall seropositivity of Spike Antibodies amongst COVAXIN™® users was 84% compared to 97.1% of the users who were vaccinated with COVISHIELD™®. Breakthrough infection cases were 23% post first dose compared to 0.96% of the post-second dose. Median titres in the group with a history of Covid was 5-6-fold higher compared to the group without a history of infection. Individuals vaccinated with COVISHIELD™® produced 2-fold high titres than COVAXIN™® in individuals who did not have a known history of past COVID-19 Infection. No significant difference was observed in titres with an increase in dose gap of COVISHIELD™®. Non vaccinated individuals with past COVID infection less than 6 months ago showed median 2-fold high titres compared to the ones infected earlier. Conclusions: Both COVISHIELD™® and COVAXIN™® have proven to produce seroconversion in almost all the subgroups. Evaluation of cellular immunity and protection by non-spike antibodies needs to be evaluated before drawing more meaningful conclusions. Increasing the gap between two doses did not prove to be of advantage. The need for vaccination can be deferred in COVID infected individuals till 6 months, prioritizing more on the naïve population.

Key words: Cellular Immunity, Humoral Immunity, Immunology, Neutralizing Antibody, Spike Antibody


 
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How to Cite this Article
Pubmed Style

Christy A, Kelkar R, Kambli M, Naik J, Jatale R, Patiyane P, Bhosale M, Chadha K, Shah N, Nigam PK. Seroepidemiology of Spike protein antibodies to SARS CoV-2 in vaccinated & non vaccinated Indian population. Int J Med Rev Case Rep. 2021; 5(10): 15-21. doi:10.5455/IJMRCR.Spike-protein-antibodies-SARS-CoV-2


Web Style

Christy A, Kelkar R, Kambli M, Naik J, Jatale R, Patiyane P, Bhosale M, Chadha K, Shah N, Nigam PK. Seroepidemiology of Spike protein antibodies to SARS CoV-2 in vaccinated & non vaccinated Indian population. https://www.mdpub.net/?mno=103968 [Access: October 13, 2024]. doi:10.5455/IJMRCR.Spike-protein-antibodies-SARS-CoV-2


AMA (American Medical Association) Style

Christy A, Kelkar R, Kambli M, Naik J, Jatale R, Patiyane P, Bhosale M, Chadha K, Shah N, Nigam PK. Seroepidemiology of Spike protein antibodies to SARS CoV-2 in vaccinated & non vaccinated Indian population. Int J Med Rev Case Rep. 2021; 5(10): 15-21. doi:10.5455/IJMRCR.Spike-protein-antibodies-SARS-CoV-2



Vancouver/ICMJE Style

Christy A, Kelkar R, Kambli M, Naik J, Jatale R, Patiyane P, Bhosale M, Chadha K, Shah N, Nigam PK. Seroepidemiology of Spike protein antibodies to SARS CoV-2 in vaccinated & non vaccinated Indian population. Int J Med Rev Case Rep. (2021), [cited October 13, 2024]; 5(10): 15-21. doi:10.5455/IJMRCR.Spike-protein-antibodies-SARS-CoV-2



Harvard Style

Christy, A., Kelkar, . R., Kambli, . M., Naik, . J., Jatale, . R., Patiyane, . P., Bhosale, . M., Chadha, . K., Shah, . N. & Nigam, . P. K. (2021) Seroepidemiology of Spike protein antibodies to SARS CoV-2 in vaccinated & non vaccinated Indian population. Int J Med Rev Case Rep, 5 (10), 15-21. doi:10.5455/IJMRCR.Spike-protein-antibodies-SARS-CoV-2



Turabian Style

Christy, Alap, Rohini Kelkar, Megha Kambli, Jyotsna Naik, Raj Jatale, Pratip Patiyane, Madhuri Bhosale, Kirti Chadha, Nilesh Shah, and Puneet Kumar Nigam. 2021. Seroepidemiology of Spike protein antibodies to SARS CoV-2 in vaccinated & non vaccinated Indian population. International Journal of Medical Reviews and Case Reports, 5 (10), 15-21. doi:10.5455/IJMRCR.Spike-protein-antibodies-SARS-CoV-2



Chicago Style

Christy, Alap, Rohini Kelkar, Megha Kambli, Jyotsna Naik, Raj Jatale, Pratip Patiyane, Madhuri Bhosale, Kirti Chadha, Nilesh Shah, and Puneet Kumar Nigam. "Seroepidemiology of Spike protein antibodies to SARS CoV-2 in vaccinated & non vaccinated Indian population." International Journal of Medical Reviews and Case Reports 5 (2021), 15-21. doi:10.5455/IJMRCR.Spike-protein-antibodies-SARS-CoV-2



MLA (The Modern Language Association) Style

Christy, Alap, Rohini Kelkar, Megha Kambli, Jyotsna Naik, Raj Jatale, Pratip Patiyane, Madhuri Bhosale, Kirti Chadha, Nilesh Shah, and Puneet Kumar Nigam. "Seroepidemiology of Spike protein antibodies to SARS CoV-2 in vaccinated & non vaccinated Indian population." International Journal of Medical Reviews and Case Reports 5.10 (2021), 15-21. Print. doi:10.5455/IJMRCR.Spike-protein-antibodies-SARS-CoV-2



APA (American Psychological Association) Style

Christy, A., Kelkar, . R., Kambli, . M., Naik, . J., Jatale, . R., Patiyane, . P., Bhosale, . M., Chadha, . K., Shah, . N. & Nigam, . P. K. (2021) Seroepidemiology of Spike protein antibodies to SARS CoV-2 in vaccinated & non vaccinated Indian population. International Journal of Medical Reviews and Case Reports, 5 (10), 15-21. doi:10.5455/IJMRCR.Spike-protein-antibodies-SARS-CoV-2