A study conducted by the King George's Medical University (KGMU) on 56 resident doctors who got infected twice in a gap of 5-6 months, has shed light that even a single dose of vaccine can provide protection against severe illness after contracting Covid.

The study found that 21 doctors out of 56, who had taken at least 1 dose of the vaccine, either remained asymptomatic or developed one of the mild symptoms such as sore throat, fever or cough. The mild symptoms also subsided within 3-4 days. They found that among single-dose beneficiaries, 3 got infected within 2-3 weeks after taking the first shot and 13 contracted infection after three weeks. The double-dose beneficiaries also got infected after three weeks.

Medical superintendent, KGMU, Dr D. Himanshu said, "Studies done earlier have already proved that antibodies start developing within 2-3 weeks after vaccination. In this study, it appears that antibodies prevented resident doctors from developing profound symptoms or falling severely ill." He added that more extensive study was required to find out what could be the other reasons that prevented severe illness because there was a possibility that antibodies developed during the first infection in some of the residents were still functional when they got infected for the second time.

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