Table 2.

Comparison of immunogenicity in the four vaccines in the participants

Vaccines	Frequency of immunization	p Value
		Sputnik V	AZD-1222	Sinopharm	Covaxin
Sputnik V	91%	-	0.69	0.01 *	0.01 *
AZD-1222	86%		-	0.02 *	0.02 *
Sinopharm	61%			-	0.73
Covaxin	67%				-