205 Ch 205. Common Respiratory Viruses

Rhinovirus (#1 common cold), seasonal coronaviruses (HKU1, OC43, NL63, 229E), parainfluenza (#1 croup), human metapneumovirus (HMPV — 2025 spike); bocavirus, enterovirus D68 (acute flaccid myelitis); 大多 mild self-limit but severe in elderly / immunocompromise / pediatric。