# The COVID-19 pandemic: an underlying factor for increased Stenotrophomonas maltophilia infections—A literature review and case study analysis

**Authors:** Arianna Pompilio, Giovanni Di Bonaventura

PMC · DOI: 10.3389/fmicb.2025.1746742 · Frontiers in Microbiology · 2026-01-20

## TL;DR

This paper reviews how the COVID-19 pandemic has led to more Stenotrophomonas maltophilia infections, especially in vulnerable patients.

## Contribution

The paper provides a comprehensive review and case study analysis of S. maltophilia infections in the context of the COVID-19 pandemic.

## Key findings

- S. maltophilia infections are rising among hospitalized COVID-19 patients.
- The review identifies risk factors and clinical consequences of these infections.
- Treatment options for S. maltophilia in this context are discussed.

## Abstract

Stenotrophomonas maltophilia is increasingly recognized as a major cause of healthcare-associated infections in intensive care units. It presents serious risks for immunocompromised patients and can cause severe lung infections in individuals with cystic fibrosis. Recent studies have documented a rising occurrence of S. maltophilia infections among hospitalized COVID-19 patients. However, understanding of these infections in this setting remains limited or inconsistent, with only one review specifically examining S. maltophilia infections in COVID-19 patients. This review critically evaluates all relevant studies from the literature, along with a case series, to explore the clinical significance of S. maltophilia infections in patients with COVID-19. In particular, the review discusses the prevalence, risk factors, phenotypic traits, clinical consequences, and treatment options for S. maltophilia infections in this clinical context.

## Linked entities

- **Diseases:** cystic fibrosis (MONDO:0009061), COVID-19 (MONDO:0100096)
- **Species:** Stenotrophomonas maltophilia (taxon 40324)

## Full-text entities

- **Diseases:** S. maltophilia infections (MESH:D007239), Stenotrophomonas maltophilia (MESH:C531821), COVID-19 (MESH:D000086382), cystic fibrosis (MESH:D003550), lung infections (MESH:D012141)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

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## Figures

3 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12867275/full.md

## References

80 references — full list in the complete paper: https://tomesphere.com/paper/PMC12867275/full.md

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Source: https://tomesphere.com/paper/PMC12867275