Respiratory tract infection and BactrimPatientsVille
Respiratory Tract Infection Symptoms and Causes
Secondhand smoke is a mixture of the smoke that comes from the burning end of a cigarette, cigar, or pipe, and the smoke breathed out by the smoker. It contains more than 7,000 chemicals. Hundreds of those chemicals are toxic and about 70 can cause cancer.
Health effects of secondhand smoke include
There is no safe amount of secondhand smoke. Even low levels of it can be harmful. The only way to fully protect nonsmokers from secondhand smoke is not to allow smoking indoors.
Centers for Disease Control and Prevention
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