Are Strep Throat Contagious?

Strep throat is caused by infection with a bacterium known as Streptococcus pyogenes, also called group A streptococcus. Streptococcal bacteria are contagious. They can spread through droplets when someone with the infection coughs or sneezes, or through shared food or drinks.

How long is a person contagious with strep throat?

Strep throat can be contagious for about 2-3 weeks in individuals who are not taking antibiotics. However, individuals who do take antibiotics for strep throat usually are no longer contagious about 24- 48 hours after initiating antibiotic therapy.

Should you go to work with strep throat?

People with strep throat should stay home from work, school, or daycare until they no longer have a fever and have taken antibiotics for at least 12 hours. This will help prevent spreading it to others. Wash your hands often to prevent the spread of germs that cause strep throat and other infections.