Final answer:
Communicable diseases are diseases that are spreadable and contagious. They can be caused by bacteria, viruses, fungi, or parasites, and can spread from person to person through direct or indirect contact.
Step-by-step explanation:
Communicable diseases are diseases that are spreadable and contagious. These diseases can be caused by bacteria, viruses, fungi, or parasites. They can spread from person to person through direct contact, such as touching or kissing, or through indirect contact, such as touching objects contaminated with the disease-causing germs. Some common examples of communicable diseases include the flu, common cold, measles, and chickenpox.
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