-
- Font
- A
Cold and Cough are common because certain viruses, such as respiratory syncytial virus (RSV), parainfluenza viruses (PIVs), and human coronaviruses (HCoVs), don't confer lasting protection after infection. Additionally, cold viruses like rhinoviruses, adenoviruses, influenza viruses, and enteroviruses have multiple serotypes, leading to enduring immunity against specific serotypes after an infection.