SynthesisRevista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia2021
Vertical Transmission of SARS-CoV-2: A Systematic Review.
Synthesis in Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
10 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.
- Pooled it
- Infants' General Movements Were Not Affected by Exposure to Maternal Severe Acute Respiratory Syndrome Coronavirus 2 Infections.Acta paediatrica (Oslo, Norway : 1992) · 2026Observational
- TORCH infections at the maternal-fetal placental transmission: an overview of multi-omics, pathogenesis and innate immune defense.Frontiers in cellular and infection microbiology · 2026Review
- BM study: a monocentric prospective observational cohort study on neonatal humoral immunity against COVID-19 secondary to transplacental antibody transfer and breastfeeding.Italian journal of pediatrics · 2025Observational
- Assessment of the Peripheral and Central Auditory System in Infants Whose Mothers Tested Positive for COVID-19 During Pregnancy.Children (Basel, Switzerland) · 2024Article
- SARS CoV-2 infection as a risk factor of preeclampsia and pre-term birth. An interplay between viral infection, pregnancy-specific immune shift and endothelial dysfunction may lead to negative pregnancy outcomes.Annals of medicine · 2023Review
- COVID-19 in Pregnant Women, Maternal-Fetal Involvement, and Vertical Mother-to-Child Transmission: A Systematic Review.Biomedicines · 2022Review
- Article
- Effects of Vertical Transmission of Respiratory Viruses to the Offspring.Frontiers in immunology · 2022Review
- Complicated COVID-19 in pregnancy, maternal and neonatal outcomes: a case report.The Pan African medical journal · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveThe evaluation of the available evidence on vertical transmission by severe acute respiratory syndrome coronavirus 2 (SARS-CoV)-2. DATA SOURCES: An electronic search was performed on June 13, 2020 on the Embase, PubMed and Scopus databases using the following search terms: ( SELECTION OF STUDIES: The electronic search resulted in a total of 2,073 records. Titles and abstracts were reviewed by two authors (WPM, IDESB), who checked for duplicates using the pre-established criteria for screening (studies published in English without limitation regarding the date or the status of the publication). DATA COLLECTION: Data extraction was performed in a standardized way, and the final eligibility was assessed by reading the full text of the articles. We retrieved data regarding the delivery of the potential cases of vertical transmission, as well as the main findings and conclusions of systematic reviews. DATA SYNTHESIS: The 2,073 records were reviewed; 1,000 duplicates and 896 clearly not eligible records were excluded. We evaluated the full text of 177 records, and identified only 9 suspected cases of possible vertical transmission. The only case with sufficient evidence of vertical transmission was reported in France.
conclusionThe risk of vertical transmission by SARS-CoV-2 is probably very low. Despite several thousands of affected pregnant women, we have identified only one case that has fulfilled sufficient criteria to be confirmed as a case of vertical transmission. Well-designed observational studies evaluating large samples are still necessary to determine the risk of vertical transmission depending on the gestational age at infection.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.