Can mosquitoes spread HIV / AIDS?

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Offline genius91

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Can mosquitoes spread HIV / AIDS?
« on: 09/12/2006 19:42:53 »
Can AIDS be spread into a human by a mosquito bite?
« Last Edit: 14/12/2006 14:07:18 by chris »
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Offline neilep

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #1 on: 09/12/2006 20:12:46 »
I have to say that personally I would say NO....as far as I am aware ( and I am NOT a medical person, though..I am in need of medical attention !! [;)])....anyway...as far as I know AIDS is reserved for us primates...ie: monkeys, humans .

The only possibility I can think of is that if a mosquito gets a belly full of aids blood and then goes and jumps on someone else...which....in a round about kind of way is exactly what you were asking was it not !!?.......DOH !!!

*hmmm...I think I'll crawl back under my duvet and await an expert*
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Offline Karen W.

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #2 on: 09/12/2006 20:54:23 »
Seems plausible, but I don't know either and often wondered that myself!

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Offline rosy

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #3 on: 09/12/2006 21:48:56 »
I've never heard it reported, and I'd expect it to have been pretty high news value. So I'd guess it probably isn't. I suspect for one thing that more young children would get AIDS/HIV if this were a significant transport mechanism.. which would probably get picked up.
I believe the AIDS/HIV virus is pretty delicate (compared say to the common cold), hence why it is transmitted only by exchange of body fluids.
Malaria has a whole stage of its lifecycle inside the mosquito, hence why when they bite again there's a whole load more virus reinjected than it sucked out of the original victim... I think the amount of virus particles transferred by a mosquito bite just blood to blood probably means you'd have to be pretty unlucky to get enough virus transferred to infect someone.

But as usual I'm just guessing.

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Offline Karen W.

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #4 on: 09/12/2006 22:24:18 »
I have heard no, something about sterilazation by the mosquito itself! I don't know as I can't remember if it was something someone told me or I read, I still don't know!

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Offline genius91

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #5 on: 10/12/2006 14:59:01 »
Karen, are you saying that mosquitos can sterilize the AIDS/HIV virus?
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Offline Karen W.

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #6 on: 10/12/2006 21:00:50 »
No, I am wondering what they mean by that ..  Someone or something I read a long time ago said that the mosquito was unlikely to pass anything that way due to some method of cleanseing nose or something. I could not believe that as I thought they could carry other things like malaria and such, that's why I am curious to know what they can carry as I don't believe the stories I heard as I think they were false.  I'm Sorry I guess I didn't phrase that well! Absolutely not, just questiong really what I heard also, as it made no sense to me at all! Thanks for calling that to my attention, I would not wish to have that thought floating around! LOL .. I must be more careful how I word things when I am tired.. Thanks!

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Offline genius91

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #7 on: 11/12/2006 20:54:27 »
lets assume what neilep said, that a mosquito sucks up a belly full of blood infected with AIDS/HIV and then hops on another person and bites, there is still blood transufusion right? so, AIDS can still be given to another human being from a mosquito right? i'm just guessing.
« Last Edit: 11/12/2006 20:57:00 by genius91 »
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Offline ukmicky

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #8 on: 12/12/2006 04:04:40 »
I believe malaria is passed on to the mosquitoes victim as the malaria parasites have evolved to use the mosquito as a host where they happily live and replicate in the intestinal tract as part of their life cycle, so when the mosquito regurgitates small amounts of the bugs are expelled into its victim allowing there cycle to continue. However the aids virus cant survive and replicate inside the mosquito as they haven't evolved side by side and are digested as food.


And if a mosquito feeds on you just after its feed on someone with aids the amount of the virus which would enter your body is to small to survive.
« Last Edit: 12/12/2006 04:11:10 by ukmicky »

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Offline neilep

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #9 on: 12/12/2006 05:19:45 »
So what your saying Michael is that the aids virus is not compatible with Mosquitoes biology/bio chemistry !

That is a big relief !

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Offline Karen W.

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #10 on: 12/12/2006 07:22:18 »
Thanks  Michael, and Neil.. I am glad to hear that too! Interesting little insects though, they love to feast on me.. I must be pretty tasty eats!! LOL!

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Offline nith2k6

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #11 on: 12/12/2006 13:20:06 »
i suspect that the HIV virus in human blood, when aspirated by the mosquito gets disrupted as the virus was very host specific and also the mosquito takes some time for next feed, so, the viruses may be killed, as the virus will be alive for very few second outside the host (primates). too, mosquitoes will never inject the aspirated blood.

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Offline genius91

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #12 on: 12/12/2006 15:32:44 »
pheww thats a relief. thanks everyone!! [:)]
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Offline iko

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #13 on: 13/12/2006 18:37:28 »
Hi everybody!
I must comment on this.
Even knowing that medical science is quite conservative and slow in achieving results...
25 years (past from AIDS 'discovery') are a bit too many for not reporting such an important route of infection in AIDS.
No such a thing has been ever described or suspected over the years.
We should be safe and feel lucky, ready to get 'only' nice lethal drug-resistant Plasmodia from mosquito bites!

iko
« Last Edit: 13/12/2006 18:39:34 by iko »

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Offline ukmicky

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #14 on: 14/12/2006 02:46:56 »
its a shame we cant breed genetically modified mosquitoes to spread  anti virul vacines around the world.

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Offline nith2k6

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #15 on: 14/12/2006 12:38:20 »
Good, creative thought,,,.

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Offline iko

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #16 on: 14/12/2006 19:09:09 »
But we do have BEE therapy folks!



Multiple Sclerosis and Bee Sting Therapy


Multiple sclerosis (MS) is a neurological disease that occurs when the insulating material called myelin around nerve cells in the central nervous system is damaged. People with MS may have pain, trouble walking and visual problems.
Several drugs can treat the symptoms of MS, but these medicines are not always effective and the disease can get worse. Therefore, some people with MS turn to alternative therapies for help. One alternative treatment for MS is bee sting therapy. During bee sting therapy (also called apitherapy), a person receives a series of honeybee venom injections under the skin. The venom can be injected with a syringe or by a live honeybee that is placed on the skin. Honeybee venom contains chemicals that reduce inflammation and affect the transmission of signals in nerve cells.
...
for more reading click here:  http://faculty.washington.edu/chudler/bsting.html




...unfortunately bee sting therapy did not produce any significant changes in disability, fatigue or quality of life in the patients.
End of the story.


ikod 
« Last Edit: 14/12/2006 19:12:35 by iko »

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Offline DrN

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #17 on: 20/12/2006 21:38:59 »
HIV is the virus that causes AIDS, the syndrome. I'm sure I remember some research into using mosquitos to spread something, or maybe it was about releasing sterile ones into the wild so that they'd breed but not produce baby mosquitos, or something. I don't know. maybe I'm confused.

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Offline neilep

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #18 on: 20/12/2006 22:40:07 »
its a shame we cant breed genetically modified mosquitoes to spread  anti virul vacines around the world.

I agree with nith2k6..THAT is an outstanding idea.


The only problem would be to create a strain that will withstand the usual climes that are mosquito unfriendly !


Presumably, there may be a downside to this in the fact that once a mosquito had been created...it may also be used to serve as a weapon too.
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Offline neilep

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #19 on: 20/12/2006 22:42:03 »
HIV is the virus that causes AIDS, the syndrome. I'm sure I remember some research into using mosquitos to spread something, or maybe it was about releasing sterile ones into the wild so that they'd breed but not produce baby mosquitos, or something. I don't know. maybe I'm confused.

I don't know if you are confused Lindsay...because I am sure I heard the same thing about the production of streile mosquitos for the exact reason you cited...it's either that or we are both confused...YES..that's it !!
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Offline Karen W.

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #20 on: 20/12/2006 22:46:28 »
Interesting!

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Offline neilep

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #21 on: 20/12/2006 23:08:48 »
LO..Yes, it is interesting isn't it  ?
Men are the same as women, just inside out !

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Offline Karen W.

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #22 on: 20/12/2006 23:11:30 »
Possibilities are boundless!  There is alot we don't know and much more we need to learn about this disease as well as its ability to spread!!

"Life is not measured by the number of Breaths we take, but by the moments that take our breath away."

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Offline DrN

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #23 on: 21/12/2006 00:02:24 »
the sterility thing would surely only work for monogamous species. are mosquitos monogamous?

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Offline WylieE

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #24 on: 21/12/2006 01:40:27 »
I just couldn't resist the title of this article
Quote
Mosquitoes Are Not Flying Hypodermic Needles

Many people think of mosquitoes as tiny, flying hypodermic syringes, and if hypodermic needles can successfully transmit HIV from one individual to another then mosquitoes ought to be able to do the same. We have already seen that HIV-infected individuals do not circulate enough virus particles to result in infection by contamination. However, even if HIV-positive individuals did circulate high levels of virus, mosquitoes could not transmit the virus by the methods that are employed in used syringes. Most people have heard that mosquitoes regurgitate saliva before they feed, but are unaware that the food canal and salivary canal are separate passageways in the mosquito. The mosquito's feeding apparatus is an extremely complicated structure that is totally unlike the crude single-bore syringe. Unlike a syringe, the mosquito delivers salivary fluid through one passage and draws blood up another. As a result, the food canal is not flushed out like a used needle, and blood flow is always unidirectional. The mechanics involved in mosquito feeding are totally unlike the mechanisms employed by the drug user's needles. In short, mosquitoes are not flying hypodermic needles and a mosquito that disgorges saliva into your body is not flushing out the remnants of its last blood meal.

For more in depth information on this topic see Staff Paper #I, Do Insects Transmit AIDS?, OTA series on AIDS-Related Issues, Health Program, Office of Technology Assessment, United States Congress, Washington, D.C. 20510-8025.

This is pretty much just what has already been covered in the forum, but I just was thinking Flying Hypodermic Needles sounds like a good band name or basketball team (no one would want to play against them ewwww). 

Anyway there's a nice summary on this page of many reasons why mosquitoes are not transmitters of AIDS
http://www.rci.rutgers.edu/~insects/aids.htm
c-ya
Colleen
PS I think female mosquitoes are monogamous but males aren't - but I don't know if this is true for all mosquitoes or just some.

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Offline Karen W.

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #25 on: 21/12/2006 05:48:30 »
YAYYYYYY< Thanks for thye cool links! I like the title too!

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Offline moonfire

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #26 on: 21/12/2006 06:48:38 »
LO..Yes, it is interesting isn't it  ?

Yes, it is Neilsy...hehe
"Just Me, Lo" Loretta

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Offline Karen W.

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Re: Can mosquitoes spread HIV / AIDS?
« Reply #27 on: 21/12/2006 07:01:06 »
LOL LOL>>> he is always making that little faux pas!! LOL

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Offline Mjhavok

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Can mosquitoes spread HIV / AIDS?
« Reply #28 on: 03/03/2007 20:32:29 »
Mosquitoes don't transmit HIV. Malaria although microscopic is a vary different organism to HIV and has evolved in ways that allows it to be transmitted by mosquitoes (the vector).
« Last Edit: 29/04/2008 03:19:30 by Mjhavok »
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Offline Injunear

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Can mosquitoes spread HIV / AIDS?
« Reply #29 on: 15/07/2007 19:22:43 »
So, how come mosquitos can transmit other viruses like the West Nile Virus?

There's got to be something in mosquitos that kills the HIV virus.

Or, as some suggested, the HIV must be injected en masse.  Doesn't make sense to me.

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another_someone

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Can mosquitoes spread HIV / AIDS?
« Reply #30 on: 16/07/2007 01:20:56 »
So, how come mosquitos can transmit other viruses like the West Nile Virus?

There's got to be something in mosquitos that kills the HIV virus.

Or, as some suggested, the HIV must be injected en masse.  Doesn't make sense to me.

There are many species of mosquito.  Not all species of mosquito transmit all diseases, and in fact most diseases are only transmitted by one or two species of mosquito, the disease having adapted to take advantage of the mosquito (hence why there are still many mosquitoes in northern climates, but none presently transmit malaria, although mosquitoes that spread malaria did live throughout Europe in earlier times).

I doubt that the species of mosquito that spreads West Nile fever is the same species that is responsible for the spread of malaria.

HIV is too new an infection to have developed the ability to survive within a mosquito (the HIV virus is a very fragile virus as viruses go, and in fact it is not that easy to get infected by HIV - you need to get pretty intimate to do it, unlike diseases like the common cold, smallpox, or even poliomyelitis).

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paul.fr

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Can mosquitoes spread HIV / AIDS?
« Reply #31 on: 16/07/2007 22:35:41 »
HIV is not transmitted by mosquitoes. If a bloodsucking insect bites someone with HIV, the virus dies almost instantly in the insect's stomach (as it digests the blood). HIV can only live in human cells.
such studies have been done on this:

Quote

These facts are confirmed by looking at infection patterns. In areas where mosquitoes are common and where HIV is prevalent, the distribution of AIDS cases in the population is not different from other areas. If mosquitoes transmitted HIV, they would be seeing a disproportionate number of children and elderly infected in those areas.


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Offline Carol-A

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Can mosquitoes spread HIV / AIDS?
« Reply #32 on: 17/07/2007 11:33:39 »
The malarial parasite has a whole stage of its life cycle in the mosquito! The organisms passed to us from the mosquito are found in the salivary glands of the insect, and so are in the fluid actually injected during the bite. For HIV to pass this way, the virus would have to migrate from the stomach of the mosquito to the salivary gland in order to be injected.

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Offline smartbutdumb

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Can mosquitoes spread HIV / AIDS?
« Reply #33 on: 26/04/2008 20:36:32 »
This is a resounding NO, they cant spread HIV . This virus is only spread via exchange in bodily fluids. Mosquittos are vectors for other viruses such as Maleria.

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Offline Andrew K Fletcher

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Can mosquitoes spread HIV / AIDS?
« Reply #34 on: 27/04/2008 23:27:47 »
What if a mozzi is interrupted during it's feed then decides it's still hungry and chooses another host?


i suspect that the HIV virus in human blood, when aspirated by the mosquito gets disrupted as the virus was very host specific and also the mosquito takes some time for next feed, so, the viruses may be killed, as the virus will be alive for very few second outside the host (primates). too, mosquitoes will never inject the aspirated blood.
Science is continually evolving. Nothing is set in stone. Question everything and everyone. Always consider vested interests as a reason for miss-direction. But most of all explore and find answers that you are comfortable with

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Offline Mjhavok

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Can mosquitoes spread HIV / AIDS?
« Reply #35 on: 29/04/2008 03:10:44 »
This is a resounding NO, they cant spread HIV . This virus is only spread via exchange in bodily fluids. Mosquittos are vectors for other viruses such as Maleria.

Just to let you know that the malaria is caused by a blood sporozoan, the worst of which is Plasmodium falciparum. It is not a virus. Malaria is the disease and not the causative agent. Transmission to humans is by the bloodsucking bite of female Anopheles mosquitoes of various species.

HIV in humans originated from cross-species infections by simian viruses in rural Africa, probably due to direct contact with infected primate blood. The virus simply hasn't evolved to be able to survive in a mosquito and probably would need extensive changes done to it before it could do so, if it is even possible at all.
Steven
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Offline Mjhavok

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Can mosquitoes spread HIV / AIDS?
« Reply #36 on: 29/04/2008 03:18:00 »


Anyway there's a nice summary on this page of many reasons why mosquitoes are not transmitters of AIDS
http://www.rci.rutgers.edu/~insects/aids.htm


I am being a bit pedantic but this is my area of education(just finished 3rd year of a microbiology degree). AIDS is not what is transmitted. HIV is what is transmitted. People who get infected with enough HIV can eventually develop AIDS but with drug therapy this can be staved off.
Steven
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Offline stana

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Can mosquitoes spread HIV / AIDS?
« Reply #37 on: 11/05/2008 11:32:27 »
HIV is not transmitted by mosquitoes, flies, ticks, fleas, bees or wasps. If a bloodsucking insect bites someone with HIV, the virus dies almost instantly in the insect's stomach (as it digests the blood). HIV can only live in human cells.

Mosquitoes cannot transmit HIV for two reasons:

The mosquito draws blood and injects saliva. The blood from one person is not injected into the mosquito's next victim.
HIV dies in the mosquito's body. People sometimes are confused because malaria actually reproduces inside the mosquito's digestive tract, using the insect as part of its life cycle. HIV does not.
These facts are confirmed by looking at infection patterns. In areas where mosquitoes are common and where HIV is prevalent, the distribution of AIDS cases in the population is not different from other areas. If mosquitoes transmitted HIV, they would be seeing a disproportionate number of children and elderly infected in those areas.

http://www.sfaf.org/aids101/transmission.html#insects