Question

Which one of the following is a communicable disease?
A)Measles
B)Cancer
C)Heart stroke
D)Allergy

Answer 1

A disease is a particular abnormal disorder that affects the entire or part of an organism's structure or function adversely, and it is not related to any direct external damage. Diseases associated with particular symptoms and signs are also known to be medical conditions.

Complete answer:
A communicable disease is a disease that spreads from one person or animal to another. People often refer to communicable diseases as diseases that are "infectious" or "transmissible". It is possible to transmit communicable diseases via body fluids, polluted environments, air, or food. Some diseases disperse during specific seasons, while in certain areas, some can be prevalent year-round. There are several symptoms and signs of communicable diseases and they can be caused by bacterias, viruses, or parasites.
After being infected by a pathogen, a person might develop a communicable disease. This can occur through:

1)Close contact with a person carrying the pathogen.
2)Contact with infected substances such as blood, mucus, or saliva.
3)Inhalation of contaminated droplets from the cough or sneeze of another person.
4)Bite from an animal or insect carrying the pathogen.
5)Ingestion of contaminated water or food.
6)It will start replicating after a pathogen has reached the body of a human.

According to the ARCH National Resource Center for Respite and Crisis Care Services, some examples of communicable diseases include colds, chickenpox, ringworm, meningitis, measles, hepatitis, and HIV/AIDS, .

Hence, the correct answer is option (A)

Note: Measles is an infectious and extremely contagious disease caused by the measles virus. Symptoms typically occur 10 to 12 days after an affected person has been exposed and last for 7 to 10 days. Fever often higher than 40 degrees celsius, cough, runny nose, and inflamed eyes are the initial signs.