Transfusion Transmissible Infections in Blood Donors in the Province of Bié, Angola, during a 15-Year Follow-Up, Imply the Need for Pathogen Reduction Technologies

Transfusion transmissible infections (TTIs), caused by hepatitis B virus (HBV), human immunode-ficiency virus (HIV), hepatitis C virus (HCV), and syphilis, have a high global impact, especially in sub-Saharan Africa. We evaluated the trend of these infections over time in blood donors in Angola. A r...

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Bibliographic Details
Published in:Pathogens (Basel) 2021-12, Vol.10 (12), p.1633
Main Authors: Peliganga, Luis Baião, Mello, Vinicius Motta, de Sousa, Paulo Sergio Fonseca, Horta, Marco Aurelio Pereira, Soares, Álvaro Domingos, Nunes, João Pedro da Silva, Nobrega, Miguel, Lewis-Ximenez, Lia Laura
Format: Article
Language:English
Subjects:
Age
Anemia
Angola
Blood
Blood & organ donations
Blood banks
Blood donors
Blood transfusion
Blood transfusions
Chronic infection
Developing countries
Hepatitis
Hepatitis B
Hepatitis C
HIV
Human immunodeficiency virus
Industrialized nations
Infections
LDCs
Malaria
Pathogens
Serology
Sexually transmitted diseases
STD
Syphilis
Transfusion
Tropical diseases
TTIs
Viruses
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Summary:Transfusion transmissible infections (TTIs), caused by hepatitis B virus (HBV), human immunode-ficiency virus (HIV), hepatitis C virus (HCV), and syphilis, have a high global impact, especially in sub-Saharan Africa. We evaluated the trend of these infections over time in blood donors in Angola. A retrospective cross-sectional study was conducted among blood donors in Angola from 2005 to 2020. Additionally, frozen samples obtained from blood donors in 2007 were investigated to identify chronic HCV carriers and possible occult HBV infection (OBI). The overall prevalence of HBV, HCV, HIV, and syphilis was 8.5, 3, 2.1, and 4.4%, respectively, among 57,979 blood donors. HBV was predominant among male donors, while the remaining TTIs were predominant among women. Donors >50 years had a significantly high prevalence for all TTIs. Chronic HCV infection was ab-sent in 500 samples tested and OBI was present in 3%. Our results show the continued high prev-alence of TTIs among blood donors in Angola. Most infections showed a significantly low preva-lence in years with campaigns seeking voluntary blood donors, thus, reinforcing the importance of this type of donor to ensure safe blood. Africa, with a high prevalence of diverse pathogens, should consider cost-effective pathogen reduction technologies, once they are commercially accessible, to increase the availability of safe blood.
ISSN:2076-0817
2076-0817
DOI:10.3390/pathogens10121633