COVID-19 Reinfection Tracker

The COVID-19 Reinfection tracker compiles information and evidence on COVID-19 reinfections from across the world and from India in a publicly accessible resource to aid clinicians, researchers and policy-makers providing them a curated and much needed evidence on re-infections.


A number of documents released in response to the COVID-19 pandemic have cited the SARS-CoV-2 re-infections reported from our studies.

ECDC Threat Assessment Brief Dated 21 September 2020

Did you know ?

Healthcare workers apparently seem to be at a much higher risk for reinfections.

Of the six cases of re-infections reported from India, 100% are healthcare workers

Genomics of COVID-19 Reinfections

Re-infection of SARS-CoV-2 is a rare entity. There have been only a few reports of SARS-CoV-2 re-infection reported from across the world. It is widely believed that genetic variants in the SARS-CoV-2 genome are responsible for re-infection. No data is yet available on host factors responsible for re-infection, though some evidence points to the key role of germinal centre development and re-infection, suggesting a potential subtle primary or secondary immunodeficiency.

If you know of a case of reinfection, please let us know. While non-clinicians could suggest a case, we would need a clinician to formally refer the case to us.


Gupta V, Bhoyar R, Jain A, Srivastava S, Upadhayay R, Imran M, Jolly B, Divakar M, Sharma D, Sehgal P, Ranjan G, Gupta R, Scaria V, Sivasubbu S Clinical Infectious Diseases (2020)
Yadav SP, Thakkar D, Bhoyar RC, Jain A, Wadhwa T, Imran M, Jolly B, Divakar MK, Kapoor R, Rastogi N, Sharma D, Sehgal P, Ranjan G, Sivasubbu S, Sarma S, Scaria VIDCases (2020), e01018,