# Analysis of the Effect of the COVID-19 Pandemic on Syphilis in Susceptible Populations: Men Who Have Sex with Men, People Living with HIV, and Patients with Gestational and Congenital Syphilis—A Narrative Review

**Authors:** Natalia Welc, Wiktoria Frącz, Rafał Olejniczak, Ryszard Żaba, Kevin Kavanagh

PMC · DOI: 10.3390/microorganisms13061205 · 2025-05-25

## TL;DR

The paper examines how the COVID-19 pandemic affected syphilis rates in vulnerable groups like men who have sex with men and pregnant women.

## Contribution

The study provides a narrative review of how pandemic disruptions impacted syphilis diagnostics and treatment in high-risk populations.

## Key findings

- The pandemic disrupted syphilis screening and treatment, leading to increased gestational and congenital syphilis cases.
- Men who have sex with men and people living with HIV experienced changes in syphilis prevalence and testing.
- Public health systems need to maintain STI services during crises to prevent long-term syphilis outbreaks.

## Abstract

The COVID-19 pandemic triggered a public health crisis that significantly impacted sexually transmitted infections (STIs), particularly syphilis. However, data on syphilis incidence during the pandemic remains inconsistent globally. Key groups affected include women of reproductive age, pregnant women, individuals living with HIV, and men who have sex with men (MSM). This paper reviews available literature from databases such as PubMed, Scopus, and Google Scholar to analyse the pandemic’s influence on congenital and gestational syphilis, focusing on high-risk populations. We discuss the pandemic’s impact on the incidence of gestational and congenital syphilis, including changes in screening and treatment protocols. Additionally, we examine alterations in syphilis prevalence and testing among people living with HIV and MSM, including implications observed in blood donors. The findings underscore the consequences of impaired STI diagnostics for public health. We emphasise the need for uninterrupted access to diagnostics and treatment during public health crises. To prevent rising syphilis rates post-pandemic, it is crucial to implement robust education and accessible testing measures.

## Linked entities

- **Diseases:** syphilis (MONDO:0005976), congenital syphilis (MONDO:0005714)

## Full-text entities

- **Diseases:** Syphilis (MESH:D013587), STI (MESH:D012749), COVID-19 (MESH:D000086382), congenital and gestational syphilis (MESH:D013590)
- **Species:** Homo sapiens (human, species) [taxon 9606], Human immunodeficiency virus 1 (no rank) [taxon 11676]

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Source: https://tomesphere.com/paper/PMC12194805