Nature: Influenza and SARS‑CoV‑2 can awaken dormant breast cancer cells and trigger lung metastasis

Nature: Influenza and SARS‑CoV‑2 can awaken dormant breast cancer cells and trigger lung metastasis

A Nature paper shows influenza and SARS‑CoV‑2 lung infections can reactivate dormant disseminated breast cancer cells (DCCs) via IL‑6 and CD4+ T‑cell–mediated mechanisms, with concordant human data linking SARS‑CoV‑2 infection to higher cancer‑related mortality and pulmonary metastasis risk.