Nancy A Otieno1, Bryan O Nyawanda1, Fredrick Otiato1, Martina Oneko1, Minal M Amin2, Michael Otieno1, Daniel Omollo1, Meredith McMorrow3, Sandra S Chaves4, Sheila C Dollard2, Tatiana M Lanzieri5. 1. Kenya Medical Research Institute, Centre for Global Health Research, Kisumu, Kenya. 2. Division of Viral Diseases, Centers for Disease Control and Prevention, Atlanta, GA, United States. 3. Influenza Division, Centers for Disease Control and Prevention, Atlanta, GA, United States. 4. Influenza Division, Centers for Disease Control and Prevention, Atlanta, GA, United States; Centers for Disease Control and Prevention, Nairobi, Kenya. 5. Division of Viral Diseases, Centers for Disease Control and Prevention, Atlanta, GA, United States. Electronic address: tmlanzieri@cdc.gov.
Abstract
BACKGROUND: Data on congenital cytomegalovirus (CMV) infection in Africa are limited. OBJECTIVE: To describe the prevalence of congenital CMV infection in a population with high prevalence of maternal HIV and malaria infection in western Kenya. STUDY DESIGN: We screened newborns for CMV by polymerase chain reaction assay of saliva swabs and dried blood spots (DBS), and assessed maternal CMV immunoglobulin G (IgG) status by testing serum eluted from newborn's DBS. We calculated adjusted prevalence ratios (aPRs) using log-binomial regression models. RESULTS: Among 1066 mothers, 210 (19·7%) had HIV infection and 207 (19·4%) had malaria infection; 33 (3·1%) mothers had both. Maternal CMV IgG prevalence was 93·1% (95% confidence interval [CI]: 88·3%-96·0%). Among 1078 newborns (12 sets of twins), 39 (3·6%, 95% CI: 2·7-4·9%) were CMV positive. The prevalence of congenital CMV infection by maternal HIV and malaria infection status was 5·0% (95% CI: 2·7-9·2%) for HIV only, 5·1% (95% CI: 2·7-9·4%) for malaria only, 8·8 (95% CI: 3·1-23·0) for HIV and malaria co-infection, and 2·6% (95% CI: 1·7-4·1%) for none. Congenital CMV infection was independently associated with maternal HIV infection (aPR=2·1; 95% CI: 1·0-4·2), adjusting for maternal age, parity, and malaria infection. CONCLUSIONS: The prevalence of congenital CMV infection was higher than the 0·2-0·7% in developed countries. Maternal HIV infection may increase the risk of congenital CMV infection, but the role of maternal malaria on intrauterine transmission of CMV remains unclear. Published by Elsevier B.V.
BACKGROUND: Data on congenital cytomegalovirus (CMV) infection in Africa are limited. OBJECTIVE: To describe the prevalence of congenital CMV infection in a population with high prevalence of maternal HIV and malaria infection in western Kenya. STUDY DESIGN: We screened newborns for CMV by polymerase chain reaction assay of saliva swabs and dried blood spots (DBS), and assessed maternal CMV immunoglobulin G (IgG) status by testing serum eluted from newborn's DBS. We calculated adjusted prevalence ratios (aPRs) using log-binomial regression models. RESULTS: Among 1066 mothers, 210 (19·7%) had HIV infection and 207 (19·4%) had malaria infection; 33 (3·1%) mothers had both. Maternal CMV IgG prevalence was 93·1% (95% confidence interval [CI]: 88·3%-96·0%). Among 1078 newborns (12 sets of twins), 39 (3·6%, 95% CI: 2·7-4·9%) were CMV positive. The prevalence of congenital CMV infection by maternal HIV and malaria infection status was 5·0% (95% CI: 2·7-9·2%) for HIV only, 5·1% (95% CI: 2·7-9·4%) for malaria only, 8·8 (95% CI: 3·1-23·0) for HIV and malaria co-infection, and 2·6% (95% CI: 1·7-4·1%) for none. Congenital CMV infection was independently associated with maternal HIV infection (aPR=2·1; 95% CI: 1·0-4·2), adjusting for maternal age, parity, and malaria infection. CONCLUSIONS: The prevalence of congenital CMV infection was higher than the 0·2-0·7% in developed countries. Maternal HIV infection may increase the risk of congenital CMV infection, but the role of maternal malaria on intrauterine transmission of CMV remains unclear. Published by Elsevier B.V.
Entities:
Keywords:
Cytomegalovirus; HIV infections; Kenya; Malaria; Prevalence
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