Low- or very-low quality evidence indicates probiotics may be better than placebo in preventing acute<unk> s. Vaccination against influenza viruses, adenoviruses, measles, rubella, Streptococcus pneumoniae, Haemophilus influenzae, diphtheria, Bacillus anthracis, and Bordetella pertussis may prevent them from infecting the URT or reduce the severity of the infection.
Upper respiratory tract infection
Carbon monoxide poisoning
Lower respiratory tract infection
Respiratory tract infection
Post-viral cough
Allergic rhinitis
Croup
Bronchorrhea