Comparative analysis of COVID-19 and influenza prevalence among Egyptian pilgrims returning from Hajj and Umrah in 2022: epidemiology, clinical characteristics, and genomic sequencing

Table 2 COVID-19 vaccination status of the Egyptian pilgrims returning from the 2022 hajj

COVID-19 vaccination	All subjects (n = 3,862)		Positive for SARS-CoV-2 (n = 385)		Negative for SARS-CoV-2 (n = 3,477)		P-value
COVID-19 vaccination	No.	%	No.	%	No.	%	P-value
Vaccine type
Viral vector	1,465	38.0	146	9.9	1,319	90.0	0.773
mRNA	492	12.7	46	9.3	446	90.7
Inactivated	542	14.0	55	10.1	487	89.9
Heterologous	843	21.8	92	10.9	751	89.1
DK	520	13.5	46	8.8	474	91.2
vaccine booster dose
Yes	2,027	52.5	223	11.0	1,804	89.0	0.012
No	1,835	47.5	162	8.8	1,673	91.2	0.012
Duration since the last dose
One month	490	12.7	52	10.6	438	89.4	0.618
1–3 months	611	15.8	63	10.3	548	89.7
> 3 months	1,687	43.7	156	9.2	1,531	90.8
DK	1,074	27.8	114	10.6	960	89.4
Previous COVID-19 infection
Yes (Hybrid immunity)	395	10.2	44	11.1	351	88.9	0.575
No	2,699	69.9	261	9.7	2,438	90.3
Not sure	768	19.9	80	10.4	688	89.6

ISSN: 2049-3258