How long does strep throat live outside the body it survive cold and or heat?

Streptococcus pyogenes, the bacteria that causes strep throat, can survive outside the body for varying periods of time, depending on the conditions.

Survival on surfaces:

- Room temperature: Strep throat bacteria can survive on surfaces at room temperature (around 20-25°C) for several hours to a few days. The exact duration depends on factors like humidity and the type of surface.

- Cold temperatures: Strep throat bacteria can also survive in cold environments, such as refrigerators or cold storage facilities. They may remain viable for several weeks or even months under refrigeration.

- Hot temperatures: Strep throat bacteria are more susceptible to heat. They can be killed by exposure to temperatures above 140°F (60°C) for a few minutes. However, some strains may tolerate higher temperatures for short periods.

Survival in the environment:

- Water: Strep throat bacteria can survive in water, particularly in environments with high organic matter or low chlorine levels. They can remain viable for several days to a few weeks in water.

- Air: Strep throat bacteria can be transmitted through respiratory droplets when an infected person coughs or sneezes. These droplets can remain suspended in the air for a short time and may remain infectious for a few hours. However, strep throat is primarily transmitted through close contact with an infected person rather than through airborne spread.

- Soil and dust: Strep throat bacteria can survive in soil and dust for several days to weeks, but they are less likely to cause infection through these routes.

It's important to note that the survival of strep throat bacteria outside the body depends on numerous factors, and the specific conditions can influence their viability and ability to cause infection. Maintaining good hygiene practices, such as regular handwashing and avoiding close contact with infected individuals, are essential for reducing the spread of strep throat.