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  • Title: The seroprevalence of parvovirus B19 antibody in blood donors at the National Blood Transfusion Center in Kinshasa.
    Author: Chabo Byaene A, Kabututu ZP, Abou Rayia DM, El-Sokkary MMA.
    Journal: J Med Virol; 2020 Mar; 92(3):288-294. PubMed ID: 31646654.
    Abstract:
    BACKGROUND: Human parvovirus B19 (PVB19) is a cosmopolitan DNA virus transmissible parenterally by blood transfusion. Therefore, the risk of transmission through asymptomatic blood donors should be considered and appropriately managed worldwide. PVB19 screening of blood and blood products for transfusion is not done routinely in the Democratic Republic of Congo (DRC). The main objective of this study was to determine the seroprevalence of PVB19 infection in healthy eligible blood donors in Kinshasa, capital of the DRC, located in the western part of the DRC, and the association of infection with the sociodemographic characteristics of blood donors. MATERIALS AND METHODS: A total of 360 whole blood donors who attended the National Center of Blood Transfusion were examined for anti-PVB19 IgG and IgM antibodies by using enzyme-linked immunosorbent assay kits. Sociodemographic information was collected on the blood donors. All statistical analyses were performed with SPSS 21. RESULTS: Among the study group, 289 men and 52 women were infected with PVB19. The mean age was 32.7 ± 9.8 years, 48.6% of donors were positive only for PVB19 IgG antibodies while 40.8% were positive for both IgG and IgM antibodies. In addition, 5.3% were positive only for PVB19 IgM antibodies and so were considered as a potential group of PVB19 transfusion-transmission. PVB19 seropositivity was significantly associated with sex, with a higher prevalence in men. In multivariate analysis, male sex and Tshangu district have emerged as major factors associated to PVB19 seropositivity. CONCLUSIONS: This research showed that recipients of blood and blood products in Kinshasa are at a high risk (5.3%) of transfusion-transmitted PVB19 infection. Therefore, the implementation of PVB19 nucleic acid testing assays capable of detecting all PVB19 genotypes and discard donations with high titer PVB19 DNA for blood products seems to be necessary.
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