Viral and bacterial factors of mother-to-child transmission of hepatitis B virus
| Autor: | Daouda Sevede, Cyprien Kouakou, Moussa Doumbia, Mireille Dosso, Pascal Pineau, Viviane Kouakou, Frederic Ahoke |
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| Rok vydání: | 2021 |
| Předmět: |
Vaginal discharge
HBsAg Hepatitis B virus Staphylococcus aureus medicine.disease_cause Enterococcus faecalis Serology Pregnancy Virology medicine Humans Hepatitis B e Antigens Prospective Studies Pregnancy Complications Infectious Prospective cohort study Hepatitis B Surface Antigens Hepatology biology Transmission (medicine) business.industry Infant Newborn virus diseases Viral Load biology.organism_classification Hepatitis B digestive system diseases Infectious Disease Transmission Vertical Infectious Diseases Immunology DNA Viral Female medicine.symptom business Viral load |
| Zdroj: | Journal of viral hepatitisREFERENCES. 28(12) |
| ISSN: | 1365-2893 |
| Popis: | Hepatitis B virus (HBV) infection is the tenth leading cause of death worldwide. Mother-to-child transmission of HBV occurring mainly at delivery remains one of the most common routes of infection in developing countries. One of the main challenges concerning HBV in Africa is to implement a prevention policy aiming at interrupting the cycle of pseudo-vertical transmission of this infection. The aim of this study was to assess the implication of certain bacterial and viral factors in mother-to-child transmission of HBV. This prospective study was conducted on 165 pregnant women carriers of HBV surface antigen (HBsAg) and their 169 newborns who attended care at the Gynecology Department of the University Hospital of Cocody. Serological, molecular, and bacteriological analyses were performed on blood samples and vaginal secretions. Mean viral load (VL) was 4.5 ± 1.3 log10 IU/ml, while mean HBsAg titres were 3.5 ± 0.9 log10 IU/ml. HBV DNA was found in vaginal secretions in 13.3% of mothers and in the blood of 10.3% of the newborns. Six bacterial species were identified in the vaginal discharge of pregnant women during labour before delivery. Staphylococcus aureus and Enterococcus faecalis were the most frequent species found in 23.0% and 13.9% of cases. Mothers positive for vaginal HBV DNA displayed higher plasma HBV DNA loads than negative mothers (6.2 ± 1.6 log10 IU/ml vs. 4.3 ± 1.0 log10 IU/ml, p |
| Databáze: | OpenAIRE |
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