Which of the following blood group systems is associated with a decreased risk of certain bacterial infections, particularly those caused by Neisseria species?

A ABO blood group system ✓
B Rh blood group system
C Kell blood group system
D P blood group system

Explanation

The ABO blood group system has been associated with a decreased risk of certain bacterial infections, particularly those caused by Neisseria species, as individuals with certain ABO blood types may have increased resistance to these infections.

Source

Transfusion Medicine and Hemostasis
Hematology Hematology: Blood Grouping and Crossmatching Hematology: Blood Grouping and Crossmatching Hard MEDICAL Confidence: medium