STUDY OF BLOOD GROUP ANALYSIS AND ITS CORRELATION WITH LYMPHOPENIA IN COVID 19 INFECTED CASES OUR EXPERIENCE IN TERITARY CARE HOSPITAL.

Ravuri, S. G.; Ravuri, S.; Cigiri, S.; Kalangi, H.; Jeshtadi, A.; Kumar, N. K.; Bacchu, S.; Nampally, V. K.

ABSTRACT AIMS AND OBJECTIVES: To study the distribution and frequencies of ABO and Rhesus (Rh) blood groups among confirmed cases of Covid19 infection .We also studied the relation between ABO blood group system and lymphopenia and studied the gender association in COVID19 patients. METHODES A hospital based retrospective study was conducted at Government Medical College Suryapet from1-8-2020 to 30-9-2020. A total of 200 Covid cases were included in the study who came to the hospital with the complaints of Fever, sore throat, body pains, cough, breathlessness, diarrhoea. Patients confirmed Covid infection were tested for blood grouping and RH typing by using forward blood grouping with the help of commercially available standared monoclonal antisera. CBP was processed in sysmax 5 part Haemotology analyzer. Blood group frequency was tested also assed the gender association , covid patients presents with lymphopenia the relation between the ABO blood group and lymphocyte count was determined. RESULTS: Males were more compared to the females .Middle aged group male patients were more commonly involved. Most predominant blood group was group B 79(39.5%), group O 78(39%),group A 37(18.5%), group AB 6(3%),most of them were 190 (95%)Rh positive, only 10 Rh negative (5%).To assess the Lymphopenia in our study we divided the absolute lymphocyte count into 5 groups. Group 1 cases are more 58 (29%), Group 2 91(45.5%), Group 3 30 (15%), Group 4 16(8%), Group 5 5(2.5%). CONCLUSION: Male patients with blood group B were more compared to other blood groups however more number of studies are necessary to confirm these findings in a larger sample and among individuals of different ethnicities. Keywords : ABO , BLOOD GROUPS, Rhesus(Rh) typing.