Please use this identifier to cite or link to this item: https://observatorio.fm.usp.br/handle/OPI/40702
Title: Identification of bacteriophages in the vagina of pregnant women: a descriptive study
Authors: COSTA, A. C. daMORON, A. F.FORNEY, L. J.LINHARES, I. M.SABINO, E.COSTA, S. F.MENDES-CORREA, M. C.WITKIN, S. S.
Citation: BJOG-AN INTERNATIONAL JOURNAL OF OBSTETRICS AND GYNAECOLOGY, v.128, n.6, p.976-982, 2021
Abstract: Objective To determine the presence and identity of extracellular bacteriophage (phage) families, genera and species in the vagina of pregnant women. Design Descriptive, observational cohort study. Setting Sao Paulo, Brazil. Population Pregnant women at 21-24 weeks' gestation. Methods Vaginal samples from 107 women whose vaginal microbiome and pregnancy outcomes were previously determined were analysed for phages by metagenomic sequencing. Main outcome measures Identification of phage families, genera and species. Results Phages were detected in 96 (89.7%) of the samples. Six different phage families were identified: Siphoviridae in 69.2%, Myoviridae in 49.5%, Microviridae in 37.4%, Podoviridae in 20.6%, Herelleviridae in 10.3% and Inviridae in 1.9% of the women. Four different phage families were present in 14 women (13.1%), three families in 20 women (18.7%), two families in 31 women (29.1%) and one family in 31 women (29.1%). The most common phage species detected wereBacillusphages in 48 (43.6%),Escherichiaphages in 45 (40.9%),Staphylococcusphages in 40 (36.4%),Gokushovirusin 33 (30.0%) andLactobacillusphages in 29 (26.4%) women. In a preliminary exploratory analysis, there were no associations between a particular phage family, the number of phage families present in the vagina or any particular phage species and either gestational age at delivery or the bacterial community state type present in the vagina. Conclusions Multiple phages are present in the vagina of most mid-trimester pregnant women. Tweetable abstract Bacteriophages are present in the vagina of most pregnant women.
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Artigos e Materiais de Revistas Científicas - FM/MIP
Departamento de Moléstias Infecciosas e Parasitárias - FM/MIP

Artigos e Materiais de Revistas Científicas - HC/ICHC
Instituto Central - HC/ICHC

Artigos e Materiais de Revistas Científicas - LIM/46
LIM/46 - Laboratório de Parasitologia Médica

Artigos e Materiais de Revistas Científicas - LIM/49
LIM/49 - Laboratório de Protozoologia

Artigos e Materiais de Revistas Científicas - LIM/52
LIM/52 - Laboratório de Virologia

Artigos e Materiais de Revistas Científicas - LIM/58
LIM/58 - Laboratório de Ginecologia Estrutural e Molecular


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