Felicia poked herself while disposing of a needle that she had just used to administer medication to a patient. she was later tested for infection from this needle stick and tested positive for human immunodeficiency virus (hiv). in this scenario, the needle stick was what link in the chain of transmission?

The cardiovascular system, which transports blood through the body, is a one-way system. select the best answer from the choices provided. t f

Andrew loves to go camping and hiking in the fall. about two weeks after his last camping trip, he noticed an expanding red, target shaped, rash on his arm. to avoid this illness, andrew should have select one: a. boiled his water before drinking. b. avoided contact with ticks. c. avoided contact with fleas found on mice. d. camped only in the spring.

Explain why hiv is a life-threatening sti.