G6PD and susceptibility to pneumonia measurement: In this regard and according to Elyassi and Rowshan [3], infection is probably the most common factor inciting hemolysis in G6PD-deficient children; a variety of diverse pathogenic microbial agents have been noted, including Escherichia coli, Rickettsia, pneumonia, Cytomegalovirus, viral A and B hepatitis, typhoid fever, beta-hemolytic streptococci [11], and, quite importantly, those related to deep carious lesions and maxillofacial infections [10, 12].