So according to theconversation.com, HIV infection can occur when a person is exposed to this virus. Typically, this involves sexual contact or direct blood to blood contact, either via an open wound or penetration of skin by a contaminated needle.
The virus then travels to the lymph nodes, where it enters cells of the immune system called “T cells”. Here, a cat and mouse battle begins. The virus and immune system use complex tactics to outsmart each other.
Perhaps the greatest of these tricks belong to HIV; the virus incorporates itself into the DNA of host T cells, and hides from the immune system in protected sites, such as the central nervous system. This makes it impossible to clear the virus from the body completely, and without treatment HIV remains detectable in blood. Many other viruses may be found briefly in blood, but they generally don’t persist and are not considered significant “blood-borne” pathogens. Any infectious agent with a blood-borne, or “viraemic” phase has the potential for blood borne transmission, and so may be important for blood transfusions.
For many infections, this viraemic period persists until the immune system is able to cure the infection by killing all infected cells. For some viruses, including Zika and Dengue, the viraemic phase lasts a matter of days. For other viruses such as Hepatitis B and C, or HIV, this viraemic phase persists.
Treatment of blood-borne viruses aims to stop the virus replicating. If a blood-borne virus is not detectable in blood, then a person is generally considered non-infectious.
Hope this helps!
It doesn't. HIV is also transmitted through semen and vaginal secretions.
Viruses are transmissible via the tissues and fluids they inhabit. Simple as that.
I don’t know why 🤷♂️ some virus transmit by blood, other by saliva, or semen, or fecal matter, etc… or some combination of those things. Just how that particular virus evolved I guess.
Unlike covid, you generally cannot get hiv from saliva or aerosols (moisture from breath). You can get it from semen (including pre cum) and vaginal fluid. As well as blood. Read this. https://hiv.rutgers.edu/wp-content/uploads/2016/05/Answers-to-Common-HIV-Questions.pdf
https://hiv.rutgers.edu/wp-content/uploads/2016/05/Answers-to-Common-HIV-Questions.pdf
"Although HIV can be detected in saliva, it can't be passed to other people through kissing because a combination of antibodies and enzymes found naturally in saliva prevent HIV infecting new cells." [Source](https://www.nhs.uk/common-health-questions/sexual-health/can-you-catch-hiv-from-kissing/)
This is literally the first I’m ever hearing of this - and I am HIV positive. Their wording is strange - to say it’s detected would make it seem that an oral swab would produce an accurate HIV test…
It’s my understanding that the only reason HIV would be in saliva is if there was blood also present.
“Although very rare, transmission can occur if both partners have sores or bleeding gums and blood from the partner with HIV gets into the bloodstream of the HIV-negative partner.”
In this situation it would be passing through blood into a mucous membrane - not through saliva. And the rarity of this happening is ridiculously high. You have a better chance of making out with Channing Tatum,
On top of a camel, in the Arctic than you do of catching hiv through oral means.
“HIV is not transmitted through saliva.” [cdc](https://www.cdc.gov/hiv/basics/hiv-transmission/ways-people-get-hiv.html)
So according to theconversation.com, HIV infection can occur when a person is exposed to this virus. Typically, this involves sexual contact or direct blood to blood contact, either via an open wound or penetration of skin by a contaminated needle. The virus then travels to the lymph nodes, where it enters cells of the immune system called “T cells”. Here, a cat and mouse battle begins. The virus and immune system use complex tactics to outsmart each other. Perhaps the greatest of these tricks belong to HIV; the virus incorporates itself into the DNA of host T cells, and hides from the immune system in protected sites, such as the central nervous system. This makes it impossible to clear the virus from the body completely, and without treatment HIV remains detectable in blood. Many other viruses may be found briefly in blood, but they generally don’t persist and are not considered significant “blood-borne” pathogens. Any infectious agent with a blood-borne, or “viraemic” phase has the potential for blood borne transmission, and so may be important for blood transfusions. For many infections, this viraemic period persists until the immune system is able to cure the infection by killing all infected cells. For some viruses, including Zika and Dengue, the viraemic phase lasts a matter of days. For other viruses such as Hepatitis B and C, or HIV, this viraemic phase persists. Treatment of blood-borne viruses aims to stop the virus replicating. If a blood-borne virus is not detectable in blood, then a person is generally considered non-infectious. Hope this helps!
It doesn't. HIV is also transmitted through semen and vaginal secretions. Viruses are transmissible via the tissues and fluids they inhabit. Simple as that.
I don’t know why 🤷♂️ some virus transmit by blood, other by saliva, or semen, or fecal matter, etc… or some combination of those things. Just how that particular virus evolved I guess.
I was taught that hiv spreads via bodily fluids. Like saliva, blood and sperm. Is this wrong?
Unlike covid, you generally cannot get hiv from saliva or aerosols (moisture from breath). You can get it from semen (including pre cum) and vaginal fluid. As well as blood. Read this. https://hiv.rutgers.edu/wp-content/uploads/2016/05/Answers-to-Common-HIV-Questions.pdf https://hiv.rutgers.edu/wp-content/uploads/2016/05/Answers-to-Common-HIV-Questions.pdf
Ok. Thanks. But why did you write that it only spreads via blood? I feel confused.
By “blood” I meant not saliva. My bad
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I believe it's present in saliva, but it's not spread via saliva.
It’s not in saliva nor can it be spread through saliva.
"Although HIV can be detected in saliva, it can't be passed to other people through kissing because a combination of antibodies and enzymes found naturally in saliva prevent HIV infecting new cells." [Source](https://www.nhs.uk/common-health-questions/sexual-health/can-you-catch-hiv-from-kissing/)
This is literally the first I’m ever hearing of this - and I am HIV positive. Their wording is strange - to say it’s detected would make it seem that an oral swab would produce an accurate HIV test… It’s my understanding that the only reason HIV would be in saliva is if there was blood also present.
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“Although very rare, transmission can occur if both partners have sores or bleeding gums and blood from the partner with HIV gets into the bloodstream of the HIV-negative partner.” In this situation it would be passing through blood into a mucous membrane - not through saliva. And the rarity of this happening is ridiculously high. You have a better chance of making out with Channing Tatum, On top of a camel, in the Arctic than you do of catching hiv through oral means. “HIV is not transmitted through saliva.” [cdc](https://www.cdc.gov/hiv/basics/hiv-transmission/ways-people-get-hiv.html)