Question

Define communicable disease

Answer 1

A communicable disease, also known as an infectious disease, is an illness caused by an infectious agent (such as a bacterium, virus, parasite, or fungi) that can be spread from one person to another or from animals to humans. These diseases are usually contagious and can be transmitted through direct contact with an infected person or their bodily fluids, through the air by respiratory droplets, through contaminated food or water, or through vectors like mosquitoes or ticks. Examples of communicable diseases include influenza, tuberculosis, HIV/AIDS, measles, malaria, and COVID-19.