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How would you define blood to blood transmission?

Hello there.

I've read that there have been cases of transmission of HIV ( especially in health care enviroments - other than the percutaneous injuries - ):

-via infected blood who came into contact with an open cut and

-via splashes of blood at eyes / mouth.

Can someone give me a REAL example of these two transmission cases and maybe enlighten me?
I mean,
1-How deep should an open cut be? How would you define deep?
2-How much blood should be dropped to the open cut (approximately of course)?
3-Shouldn't this happen immediately, since HIV gets inactive when it goes out of its host?
4-As I understand it, our ideal situation is two deep open cuts, one which is bleeding hiv+ blood that is dropped immediately ( or like with some seconds delay ) to the other deep open cut or at a mucous membrane, am I correct?
5-Saliva and tears render HIV inactive, so how did HIV got transmitted this way?
6-Is it true that micro-tears or generally small cuts / scratches etc, if they get into contact with fresh hiv+ blood, the person with the scratches will not get infected since there is a small amount of virus transferred?
7-Doesn't HIV transmission need only one infected with HIV cell to infect the other person, or there has to be a sufficient amount of blood and therefore HIV infected cells?
8-If a minimal amount ( for example, the MOST minimal amount ) of HIV infected cells gets IN your bloodstream, are you infected?
Cheers!
Best Answer
Avatar universal
1.Very deep,hospital treatment would be required. 2.A small drop would be enough if the persons viral load was high.3.Yes,it would have to be instant like a needlestick injury.4.They would have to come in direct contact.5.It doesn't.6.That's true.7.It wouldn't survive and therefore wouldn't infect you.8.Through sharing needles and unprotected penetrative vaginal or anal sex--yes.
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You're welcome.
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Thank you man:)
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That and also for the blood to enter the bloodstream of the other person.
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Thanks!
Something last, the wounds have to come together, in contact with each other, so that HIV infected blood ( or bodily fluids in general ) doesn't come into contact with open air and the enviroment and therefore doesn't lose its infectiousness?
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There is only one way to contract HIV from blood to blood wound and that is if both people have huge open wounds and the wounds come together,obviously one person would have to be infected with HIV.
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1.I suppose that's why there have been ( less than 5 I think ) transmission cases of HIV - not sure if they are 100% verified - at bloody fights which involved a LOT of injuries?
2.Also, a scratch / cut that bleeds for 1-5 minutes at minimum amounts, you know, a typical scratch / cut / "burn" ( from rubbing on hard surfaces ) is not harmful?
3.Does that have to do with the layers of the skin?
4.If you can, give me a small lecture on skin layers :)
Thanks for the answers, I really appreciate it, last post of questions anyway:)
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Avatar universal
Okay, thank you! :)
Could you, or someone else, Teak for example, answer my questions one by one just for educational reasons?
Cheers!
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Avatar universal
Most of the healthcare transmissions are needle stick injuries and blood to blood transmission would require a huge open wound to come directly in contact with another huge open wound of an infected person.
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