A common cold can progress to secondary bacterial pneumonia.

Is it true that a common cold can progress to secondary bacterial pneumonia?

Unclear. Several sources indicate that common-cold viruses such as rhinovirus and coronavirus are among the viral infections associated with secondary bacterial pneumonia, though the strongest data concern influenza and COVID-19 rather than the common cold itself. One case report describes a common-cold coronavirus causing severe pneumonia without bacterial coinfection, which does not refute the general possibility.

Verdict: PARTIAL LEAN · 4 sources for, 1 against · Last checked 3 Oct 2026

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Borgogna, T. R. & Voyich, J. M. (2022). Examining the Executioners, Influenza Associated Secondary Bacterial Pneumonia. doi.org. https://doi.org/10.5772/intechopen.101666

Nabeya, D., Kinjo, T., Motooka, D., Ishii, K., Hasegawa, T., Okamoto, T., Imada, S., Nakamura, S., Shiiki, S., & Kishaba, T. (2026). When a Common Cold Virus Mimics Bacterial Septic Pneumonia: Metagenomic Exclusion of Bacterial Coinfection in Human Coronavirus NL63 Pneumonia. doi.org. https://doi.org/10.2139/ssrn.7506840

Khalid, B., Baig, S., Agha, F., Faisal, H., Jafri, A., & Bhatty, A. (2026). Association of TLR7 Variants with Secondary Bacterial Pneumonia in COVID-19 Patients. doi.org. https://doi.org/10.54393/pjhs.v7i3.3655

Postviral Complications: Bacterial Pneumonia - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.1016/j.ccm.2016.11.006

AYURVEDIC MANAGEMENT OF ACUTE LARYNGITIS: A CASE REPORT. (2025). doi.org. https://doi.org/10.46607/iamj3213092025