Penicillin allergy labels may fuel superbugs, study warns

NCT ID NCT07177690

First seen Oct 31, 2025 · Last updated May 16, 2026 · Updated 32 times

Summary

This study looks at how having a penicillin allergy label affects treatment and antibiotic resistance in patients hospitalized with COVID-19. Many people labeled as allergic to penicillin are not truly allergic, leading to use of less effective antibiotics that can increase drug-resistant bacteria. Researchers will compare outcomes and measure resistance genes in saliva and gut samples from 214 adults. The goal is to understand if removing incorrect allergy labels can reduce resistance and improve patient outcomes.

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Contacts and locations

Locations

  • Leeds Teaching Hospitals NHS trust

    Leeds, United Kingdom

Conditions

Explore the condition pages connected to this study.