Infection where the bacteria are actively growing in your body, and Intoxication, where a chemical that the bacteria produced is ingested and causes illness.
Answer: They study Microoganisms
Explanation:
They study micro (meaning small) organisms, for example, bacteria and algae, which is extremely minature. It is difficult and dangerous if left infected, but their work is sucessful if worked with the right tools, they try to understand how microorganisms live in their small environment
