Children typically have two to nine viral respiratory illnesses per year. In 2013, 18.8 billion cases of<unk> s were reported. As of 2014, they caused about 3,000 deaths, down from 4,000 in 1990. In the United States,<unk> s are the most common<unk> s illness in the general population, and are the leading reasons for people missing work and school.
Upper respiratory tract infection
Carbon monoxide poisoning
Lower respiratory tract infection
Respiratory tract infection
Post-viral cough
Allergic rhinitis
Croup
Bronchorrhea