Satish Kumar1, R M Gupta2, Sourav Sen3, R S Sarkar4, J Philip5, Atul Kotwal6, S H Sumathi7. 1. Classified Specialist (Transfusion Medicine), INHS Asvini, Mumbai, India. 2. Senior Advisor (Pathology & Virology), CH (NC), Udhampur, India. 3. Commanding Officer, Military Hospital Paharpur, Gaya, India. 4. Commandant, 151 Base Hospital, C/o 99 APO, India. 5. Associate Professor, Dept of Transfusion Medicine, AFMC, Pune-40, India. 6. Director AFMS (Medical Research), New Delhi, India. 7. Resident, Dept of Transfusion Medicine, AFMC, Pune-40, India.
Abstract
BACKGROUND: Human parvovirus B19 is an emerging transfusion transmitted infection. Although parvovirus B19 infection is connected with severe complications in some recipients, donor screening is not yet mandatory. To reduce the risk of contamination, plasma-pool screening and exclusion of highly viraemic donations are recommended. In this study the prevalence of parvovirus B19 in healthy blood donors was detected by ELISA. METHODS: A total of 1633 samples were screened for IgM and IgG antibodies against parvovirus B19 by ELISA. The initial 540 samples were screened for both IgM and IgG class antibodies and remaining 1093 samples were screened for only IgM class antibodies by ELISA. RESULTS: Net prevalence of IgM antibodies to human parvovirus B19 in our study was 7.53% and prevalence of IgG antibodies was 27.96%. Dual positivity (IgG and IgM) was 2.40%. CONCLUSION: The seroprevalence of human parvovirus B19 among blood donor population in our study is high, and poses an adverse transfusion risk especially in high-risk group of patients who have no detectable antibodies to B19. Studies with large sample size are needed to validate these results.
BACKGROUND:Human parvovirus B19 is an emerging transfusion transmitted infection. Although parvovirus B19 infection is connected with severe complications in some recipients, donor screening is not yet mandatory. To reduce the risk of contamination, plasma-pool screening and exclusion of highly viraemic donations are recommended. In this study the prevalence of parvovirus B19 in healthy blood donors was detected by ELISA. METHODS: A total of 1633 samples were screened for IgM and IgG antibodies against parvovirus B19 by ELISA. The initial 540 samples were screened for both IgM and IgG class antibodies and remaining 1093 samples were screened for only IgM class antibodies by ELISA. RESULTS: Net prevalence of IgM antibodies to human parvovirus B19 in our study was 7.53% and prevalence of IgG antibodies was 27.96%. Dual positivity (IgG and IgM) was 2.40%. CONCLUSION: The seroprevalence of human parvovirus B19 among blood donor population in our study is high, and poses an adverse transfusion risk especially in high-risk group of patients who have no detectable antibodies to B19. Studies with large sample size are needed to validate these results.
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