そういう認識がCovid-19以前にはなかったということで・・・
Xie, Yan, Taeyoung ChoiとZiyad Al-Aly. 「Long-term outcomes following hospital admission for COVID-19 versus seasonal influenza: a cohort study」. The Lancet. Infectious diseases, 2023年12月14日, S1473-3099(23)00684-9. https://doi.org/10.1016/S1473-3099(23)00684-9 .
‘Long flu’: study finds flu patients at higher risk of longer-term illness | Flu | The Guardian