Overview Incidence Risk Factors Symptoms cold versus flu Evaluation Treatment questions for doctor specialist Home Care congestion cough fever sore throat warning signs wheezing Prevention Outlook Complications Underlying Cause Transmission
Facts about upper respiratory infections:
- An upper respiratory infection is very contagious.
- People with an upper respiratory infection release the virus into the air on droplets of mucus when they sneeze or cough.
- The virus enters the lungs of others when they inhale the droplets.
- The virus may also be spread through contact with saliva.
- Touching a contaminated object then touching the mouth or eyes will spread the virus.
PubMed URI References
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- Fahey T, Stocks N, Thomas T. Systematic review of the treatment of upper respiratory tract infection. Arch Dis Child. 1998 Sep;79(3):225-30. 
- Islam J, Carter R. Use of Echinacea in upper respiratory tract infection. South Med J. 2005 Mar;98(3):311-8. 
- Lam TP, Lam KF. Why do family doctors prescribe antibiotics for upper respiratory tract infection? Int J Clin Pract. 2003 Apr;57(3):167-9. 
- Ray DA, Rohren CH. Characteristics of patients with upper respiratory tract infection presenting to a walk-in clinic. Mayo Clin Proc. 2001 Feb;76(2):169-73.