Final answer:
Pathogenic bacteria are harmful microorganisms that can cause disease or infection in humans when they invade the body.
Step-by-step explanation:
Pathogenic bacteria are harmful microorganisms that can cause disease or infection in humans when they invade the body. These bacteria have the ability to produce toxins that can damage cells and tissues, leading to a range of symptoms. Examples of pathogenic bacteria include Salmonella which can cause food poisoning, and Streptococcus pyogenes which can cause strep throat.
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