Question

Highlight the way through which infectious disease generally spread in human communities.

Answer 1

Infectious disease:

1. Infectious diseases are those that are caused by pathogens and can spread from a sick person to a healthy person.
2. Cholera, rabies, and chickenpox are some examples of these types of diseases.

Mode of spread:

1. These type of disease may spread through

• through the air (e.g. tuberculosis),
• through contaminated food and water (e.g., cholera, Hepatitis A),
• through vectors (e.g., trypanosomiasis, rabies)
• through direct contact with the patient (e.g., chickenpox).