What are the incubation periods for upper respiratory tract infections (URIs)?
Incubation Period of Viruses Causing Upper Respiratory Infections Rhinoviruses and Group A Streptococcal virus = 1-5 days Influenza and parainfluenza virus = 1-4 days Respiratory Syncytial Virus (RSV) = 1 week Pertussis = 7-10 days Diphtheria = 1-10 days Epstein-Barr virus (EBV) = 4-6 weeks