Seroepidemiology study of Cytomegalovirus and Rubella in pregnant women in Luanda, Angola: geospatial distribution and its association with socio-demographic and clinical-obstetric determinants

BMC Infectious Diseases

Paula Santana¹  Ricardo Almendra²  Amélia Vueba³  Clarissa Faria⁴  Maria do Céu Sousa⁴ 

[1] CEGOT-Centre of Studies in Geography and Spatial Planning and Department of Geography and Tourism, Faculty of Arts and Humanities, University of Coimbra, Coimbra, Portugal;Centre of Studies on Geography and Spatial Planning (CEGOT), Department of Geography and Tourism, University of Coimbra, Coimbra, Portugal;Faculty of Pharmacy, University of Coimbra (FFUC), 3000-548, Coimbra, Portugal;Faculty of Pharmacy, University of Coimbra (FFUC), 3000-548, Coimbra, Portugal;Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal;

关键词: Anti-Rubella antibodies;    Anti-CMV antibodies;    Seroprevalence;    Rubella infection;    Cytomegalovirus infection;    Hepatitis B;    HIV;    Pregnancy;    Miscarriages;    Spontaneous abortion;    Vaccination;   

DOI  :  10.1186/s12879-022-07087-x

来源: Springer

【 摘 要 】

BackgroundBoth CMV and Rubella virus infections are associated with the risk of vertical transmission, fetal death or congenital malformations. In Angola, there are no reports of CMV and Rubella studies. Therefore, our objectives were to study the seroprevalence of anti-CMV and anti-Rubella antibodies in pregnant women of Luanda (Angola), identify the risk of primary infection during pregnancy and evaluate the socio-demographic risk factors associated with both infections.MethodsA prospective cross-sectional study was conducted from August 2016 to May 2017. Specific anti-CMV and anti-Rubella antibodies were quantified by electrochemiluminescence and demographic and clinical data were collected using standardized questionnaire. Bivariate and multivariate logistic regression analysis were used to quantify the effect of clinical and obstetric risk factors on virus seroprevalence.ResultsWe recruited 396 pregnant women aged from 15 to 47. Among them, 335 (84.6%) were immune to both CMV and Rubella virus infections, while 8 (2.0%) had active CMV infection and 4 (1.0%) active RV infection but none had an active dual infection. Five women (1.2%) were susceptible to only CMV infection, 43 (10.9%) to only RV infection, and 1 (0.3) to both infections. Multivariate analysis showed a significant association between Rubella virus infection and number of previous births and suffering spontaneous abortion.ConclusionsOverall, this study showed that there is a high prevalence of anti-CMV and anti-Rubella antibodies in pregnant women in Luanda. It also showed that a small but important proportion of pregnant women, about 11%, are at risk of primary infection with rubella during pregnancy. This emphasizes the need for vaccination.

【 授权许可】

CC BY