Table 1.

Categorization of subjects based on their infection and vaccination status. The study included COVID-19 RT-PCR positive and negative subjects from the three COVID-19 infection waves

Group	Subjects distribution in different categories	No. of subjects included	Table
Group-1	COVID-19 infected 1 a: From first wave (April–August, 2020) 1 b: From second wave (April–August, 2021)	18 105	2, a 2, b
Group-2	Non-infected but vaccinated 2a: Non-infected and vaccinated with vaccine-A 2b: Non-infected and vaccinated with vaccine-B 2c: Non-infected and vaccinated with vaccine-C 2d: Non-infected and vaccinated with vaccine-D	143 504 02 04	3, a 3, b 3, c 3, d
Group-3	COVID-19 infected and vaccinated 3a: Infected and vaccinated with vaccine-A 3b: Infected and vaccinated with vaccine-B	104 133	4, a 4, b
Group-4	COVID-19 non-infected and non-vaccinated Asymptomatic group	95	5
Group-5	Random group Had no proper details of infection or vaccination	402 + 472	6, a + b
Group-6	Third wave subjects (December–January, 2022)	34	7