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Atypical Testing in the Viral Era

Study questions routine testing for atypical bacterial co-infection in viral respiratory hospitalizations

  • By

  • mdspire news news staff

  • February 2, 2026

  • 3 min

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  • 1

    Routine testing for atypical bacterial co-infections in viral respiratory infections shows limited value, according to a Danish cohort study.

  • 2

    Only 1% of patients tested for atypical bacteria had positive results, indicating low prevalence of co-infection.

  • 3

    Despite low co-infection rates, 4% of patients received empirical clarithromycin within 48 hours of admission.

  • 4

    Most patients with confirmed atypical bacterial co-infection did not receive early macrolide therapy before test results.

  • 5

    The study suggests that routine testing and treatment for atypical pneumonia in viral infections is not supported by current guidelines.

Original Source(s)

Atypical Testing in the Viral Era

  • by mdspire news news staff

  • February 2, 2026

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