Respuesta :
Answer:
All the three statements are true.
Explanation:
a. Blood borne pathogens are carried through the blood medium. These pathogens can spread through infected blood of one person to another person. Examples: HIV and hepatitis virus (HBV, HCV and HDV are spread by blood and sexual contact).
b. AIDS is a deficiency of immune system, acquired during the life time of an individual. HIV is a retrovirus, it produces DNA from its RNA which then gets integrated into host cell DNA. There it can remain dormant , giving no sign of its presence.
c. Viral hepatitis includes such symptoms of change in smell, taste and itching.