Yes, strep throat is contagious. The most common way to catch strep throat is by contact with an infected person.
Close contact with airborne droplets of an infected individual is the most common way of catching Streptococcus infection. Close quarters such as college dormitories, day care centers, military facilities, schools, and families provide ideal conditions for transmission of strep throat from one person to another. The risk of acquiring strep throat from an affected family member nears 40%. Spread through food-borne outbreaks is less common, but possible.
The risk of being contagious with strep throat diminishes substantially after initiation of proper antibiotic treatment.
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