A review at Delhi's Sir Ganga Ram Hospital has observed that blood bunches A, B and Rh+ are more arranged to Covid-19 disease, while blood bunches O, AB and Rh-are at a fundamentally lower hazard of the contamination. 

The review was led in 2,586 Covid-19 positive patients who were conceded to the clinic from April 8 2020 to October 4 2020. The discoveries were distributed in the November 21 issue of Frontiers in Cellular and Infection Microbiology.