An infectious disease is one that is ___________.

Q. _______ are an infectious disease, which spread from a person to person and are caused by the pathogens.

Q. Choose the correct option regarding the statements given below.

Statement 1: Infectious diseases are primarily caused by pathogens and can spread from a person to another.
Statement 2: Tuberculosis bacteria spreads through air.

Q.

__ are the organisms that help in the spread of a disease from an infected person to a healthy person by carrying the disease-causing pathogens.

Q.

The dengue disease spread by Aedes mosquito is caused by :

(a) bacteria (b) virus (c) protozoan (d) fungus

Q. All chronic diseases are infectious and caused by pathogens.