At what temperature does MRSA grow best?

The optimal growth temperature for Methicillin-Resistant Staphylococcus aureus (MRSA) is 37ºC. This temperature is close to the average human body temperature, which is why MRSA is particularly adept at thriving in human hosts. At this temperature, MRSA can efficiently metabolize nutrients and replicate, leading to its pathogenic effects.

The other temperatures listed are less than optimal for MRSA growth: 30ºC and 35ºC are lower than 37ºC, slowing its growth rate, while 40ºC is higher than its preferred range and can be harmful to its survival. Therefore, while 35ºC may support some growth, it is not as ideal as 37ºC for the bacterium's proliferation.