AP BIOLOGY

THE HUMAN IMMUNE SYSTEM

AIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How can HIV be spread from one person to another?
A
through holding hands
B
through kissing
C
through unprotected sex
D
trough sharing toothbrushes
Explanation: 

Detailed explanation-1: -The only possible risk would be if body fluids from a person with HIV touch the mucous membranes or damaged tissue of someone without HIV. Mucous membranes are found inside the rectum, vagina, opening of the penis, and mouth. Damaged tissue could include cuts, sores, or open wounds.

Detailed explanation-2: -HIV is transmitted through seminal and vaginal fluids, including menstrual fluids. The virus can enter the body through the bloodstream or by passing through delicate mucous membranes, such as inside the vagina, rectum or urethra.

Detailed explanation-3: -With all three types of sex, the odds of contracting HIV after one exposure are well below 1%. So, even though there is a theoretical risk with any one sexual encounter-in reality, your chance is low.

Detailed explanation-4: -The median person thinks that if you have unprotected sex with an HIV-positive person a single time, you will get HIV for sure. The truth is that it’s not nearly that easy to get HIV – the medical literature estimates that the transmission rate is actually about 0.1% per sex act, or 10% per year.

There is 1 question to complete.