Answer:
Infectious diseases are caused by pathogenic microorganisms, such as bacteria, viruses, parasites or fungi; the diseases can be spread, directly or indirectly, from one person to another. Zoonotic diseases are infectious diseases of animals that can cause disease when transmitted to humans.
Explanation:
Answer: Infections are caused by germs that enter the body, multiply, and cause harm or illness.
Explanation: The main types of germs that can cause infections are Bacteria and Viruses.