cavity No. 2 Directions: Read very carefully each statement about the nature of communicable diseases. Write T if the statement is true and F if it is false,
1. Organisms like bacteria and viruses are all over the environment. _
2. Many of the most common diseases are caused by tiny microorganisms called pathogens.
3. Communicable diseases come from one infected person to another.
4. Stomach ache is one symptom that can be manifested by a communicable disease.
5. Viral hepatitis is caused by a virus that affects the liver.
6. Rabies virus can enter only the brain cells while polio virus attacks only the nervous system.
7. Malarla is a sickness caused by a carrier mosquito.
8. Pinworms hatch and live primarily in the intestines of a person.
9. Stagnant water is a reservoir for mosquitos to multiply.
10. It is the nature of pathogens to invade its host through certain points of entry to cause morbidity.​