highly significantp < 0.001
Also results of the current study showing a highly significant (p < 0.001) increase in the levels of whole blood WBCs count (14.38 ± 6.06) and neutrophils count (79.26 ± 5.57) when compared with mild to moderate patients (10.03 ± 4.17 & 73.76 ± 7.19; respectively); while lymphocytes count (14.21 ± 5.13) was highly significantly (p < 0.001) decreased when compa