Is everything known about the tramission of AIDS?!


Question: A father and his son had this strange habit of using the same toothbrush and using the same shaving machine. A couple of years the father died of AIDS. After some 3 years the son decided to go in for the HIV screening. He came out negative. We all know that a person gets wounded in the mouth while cleaning his teeth. Why did they son never got infected?


Answers: A father and his son had this strange habit of using the same toothbrush and using the same shaving machine. A couple of years the father died of AIDS. After some 3 years the son decided to go in for the HIV screening. He came out negative. We all know that a person gets wounded in the mouth while cleaning his teeth. Why did they son never got infected?

HIV dies after being in the air for a short amount of time. this is why it is hard to contract (although it is deadly) and generally needs to be passed from within the body, or via something that protects it from the air (eg. a needle.) the toothbrush and shaving machine would have been exposed to the air - killing the HIV. so this is why the son did not contract HIV.

however, in this situation i still would not share a tooth brush and particularly not the shaver, just in case.

Umm lots of reasons. HIV is primarily spread by blood to blood contact and although you can get it from sharing tothbrushes and shaving equipment it is actually quite rare (but NEVER a god idea).

For the virus to take hold it needs to get from infected persons to a prtential recipients blood stream. Sharing shaving equipment is probably the riskier of the two as you are more likely to cut yourself (thus blood to blood is more likely).

But you need enough of the virus to actually "infect" you this is called an infectious dose, the "dose" of the virus on a tooth brush or razor is probably not enough to infect.

Also virus's don't tend to survive long outside of the body, so unless they use the same equipment within a few minutes of each other the virus dies. You can only catch HIV from a "live dose." Basically there are lots of variables.

I hope this helps,
Chris- Registered Nurse

Not necessary,it really depends if the other person has a cut in their mouth.I guess it is considered a low risk activity.





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