Strep throat is a common bacterial infection affecting the throat and tonsils, caused by Streptococcus pyogenes, also known as group A Streptococcus. It is more prevalent in children and teenagers, but adults can also contract it, particularly those in close contact with younger individuals. While symptoms can vary, they often include a sudden sore throat, pain when swallowing, and fever.
How Strep Throat Spreads
The bacteria responsible for strep throat are highly contagious and primarily spread through respiratory droplets. When an infected person coughs, sneezes, talks, or even sings, these droplets can be released into the air. Others can then inhale these airborne particles, leading to infection.
Transmission also occurs through direct contact with respiratory secretions, such as touching contaminated surfaces like doorknobs or shared objects, and then touching one’s nose, mouth, or eyes. Sharing personal items like cups or eating utensils with an infected individual can also facilitate the spread of the bacteria.
Antibiotics and Contagiousness
Antibiotics are prescribed to treat strep throat because it is a bacterial infection, unlike most sore throats which are viral. Commonly used antibiotics include penicillin and amoxicillin, which ultimately kill the Streptococcus pyogenes bacteria. This targeted action rapidly reduces the bacterial load in the infected individual.
As the bacterial count decreases, the person becomes significantly less contagious. Generally, an individual with strep throat is no longer considered contagious after they have been on antibiotics for at least 24 hours. It is important to continue the full course of antibiotics as prescribed, even if symptoms improve, to ensure complete eradication of the bacteria and prevent potential complications. Untreated strep throat can remain contagious for several weeks.
When It’s Safe to Kiss
Considering the rapid reduction in contagiousness with antibiotic treatment, it is generally considered safe to kiss someone with strep throat after they have completed at least 24 hours of antibiotic medication. It is also advisable to wait until their fever has subsided and they are feeling notably better overall.
While the risk of transmission becomes very low after this 24-hour period on antibiotics, maintaining good hygiene practices remains beneficial. Regular handwashing with soap and water can help prevent the spread of various germs, especially when someone in the household has been ill.