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HIV Transmission and Education >> Am I Infected?

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Anonymous
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needles?
      #67908 - 07/21/03 10:27 AM

I dont understand still how sharing needles for injecting drugs can pass on hiv when I read that hiv doesnt infect once exposed to air.I read that its due to a sealed environment but isnt blood in a hollow bore needle exposed to air after a person has used it?Also doesn't whatever the needle draw in mix with the blood that was already in the hollow bore reducing its ability to infect?I'm kinda confused here,can anyone help?



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Anonymous
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Re: needles? new
      #67910 - 07/21/03 11:39 AM

A simplified explantion. If you have ever looked at a syringe of a needle you will find that as blood is pull up from the needle it goes into the syringe part. The blood is pulled up because of the suction created as the plunger is pulled up the syringe. The blood in that syringe is never exposed to air. Same thing when a needle is used. The plunger is pushed down and the substance is pushed into the vein. Air bubbles mixed with that can be deadly, so syringes are designed to keep air from mixing with the fluids. The reason it is such a problem for IV drug users is that there is always an amount of 'backwash' so to speak that enters the syringe. Most people using IV drugs probably also are not taking care of their health, and thus if they are infected probably have an very high viral load that increase the risk of transmission.



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Anonymous
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Re: needles? new
      #67913 - 07/21/03 12:57 PM

why doesn't hiv die when the blood left over from the needle is again mixed with the substance they are injecting.I only ask this because I thought hiv was fragile and doesn't survive well when mixed with other substances.



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Anonymous
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Re: needles? new
      #67916 - 07/21/03 01:34 PM

A substance such as Saliva will inhibit the virus. However other substances mixed with it won't. What's your interest in this? If you are an IV drug user, I'm sure you know the mechinics of needles and syringes. If you aren't a drug user, then you don't have anything to worry about. Whether you understand it or not, IV drug use is the number one way to become infected.



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Anonymous
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Re: needles? new
      #67917 - 07/21/03 01:50 PM

Trying to help out a friend who stepped on a syringe.And your rite I'm not familiar with the mechanics of a syringe.I also read in the "Safe Sex, HIV Prevention and Transmission" forum by "dr Bob" that once a the hollow bore is exposed to air then you cant get hiv by getting pricked by it,so I guess getting pricked must pose a less risk if any compared to injecting,rite?thanks for your help.



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Anonymous
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Re: needles? new
      #67920 - 07/21/03 02:53 PM

That's very true. Getting prick doesn't mean any of the fluid actually makes it to the blood stream. An injection straight to the vein is a quick trip for the virus.

However your friend might want to get check out for Hepatitis. It's much more likely something like that can be transferred by a prick of a needle.



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