How long are you contagious with strep throat?

If you are diagnosed with strep, you will stop being contagious approximately 24 hours after starting an antibiotic. Antibiotics should help alleviate your symptoms within one or two days, although in some people the symptoms may last up to a week. read more

Strep throat is contagious for about 2-3 weeks in individuals that do not take antibiotics. However, individuals that take antibiotics for strep throat usually are no longer contagious about 24 hours after initiating antibiotic therapy. read more

Short response: if you have strep throat, yes, you are most definitely contagious. According to Dr. Jennifer Shu on CNN, you are most contagious a few days before symptoms show, and until approximately 24 hours after starting antibiotics to treat it. read more

Most antibiotic treatments for strep throat last about 10 days. Kids usually feel better a day or two after they start them. Once they've been on these drugs for about 24 hours, they're no longer contagious and can go back to school. read more