Choose true or false for all questions: 1. blood borne pathogens are disease causing organisms carried in human blood. a. true b. false 2. a person could have hiv and not have any symptoms for several years. a. true b. false 3. change in smell/taste and generalized itching are some of the symptoms of hepatitis.

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.

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