Incidence of Breakthrough Infections after COVID-19 Vaccination among the COVID-19 Vaccine Recipients at a Tertiary Care Hospital in Srinagar

ABSTRACT

COVID‑19 infections despite complete vaccination are called breakthrough infections. Breakthrough infections may decrease the vaccination confidence among people. This study was conducted soon after the Covishield vaccine was approved for use in J and K to find out the incidence of breakthrough infections among the recipients of the Covishield vaccine at SKIMS and to find out the associated factors. List of beneficiaries (between February 14, and May 15, 2021) was obtained from the records. Information was gathered telephonically. Incidence of breakthrough infections 6‑month postvaccination was determined. Among 919 participants, the incidence of breakthrough infections was 2.7% (25 cases). The medical profession was associated with a higher frequency of breakthrough infections. Most infections were mild to moderate (96%). One (4%) person required hospitalization. Thus, COVID‑19 infections can occur despite complete vaccination. Increased exposure places an individual at higher risk of breakthrough infections. Therefore, where exposure is high, COVID‑appropriate behavior should be followed despite being vaccinated.