Table 2.

Results of the infection analysis.

First author, Year	COVID-19+		COVID-19-		COVID-19+		COVID-19-		COVID-19+		COVID-19-		COVID-19+		COVID-19-
	A	Non-A	A	Non-A	B	Non-B	B	Non-B	AB	Non-AB	AB	Non-AB	O	Non-O	O	Non-O
Jiao Zhao, 2020	670	1105	1188	2506	469	1306	920	2774	178	1597	336	3358	458	1317	1250	2444
Jiao Zhao, 2020	45	68	1188	2506	25	88	920	2774	15	98	336	3358	28	85	1250	2444
Jiao Zhao, 2020	82	203	6728	16,658	83	202	5880	17,506	39	246	1712	21,674	81	200	9066	14,320
Michael Zietz, 2020	233	449	245	632	116	566	136	741	21	661	47	830	312	370	449	428