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Interesting Info about Survival of Hiv in Needle
I have read that many people on this site are concerned about needle sticks/exposures and want to know how long can hiv live in a needle/tip/inside.
I was just going through the internet and found this article.which primarily says that after a blood draw the residual blood on the needle was immediately taken for a PCR test and they have the results also below : read it,from what i learn is that its not too high BUT its there.Hope it clears the worried people on how much time it takes for the hiv survial in a needle.
My Question to posters on medhelp: Do needle sticks have to be immediate to cause the hiv infection?or can it be after 10-20 minutes too?
anyways read what i found from this link http://gateway.nlm.nih.gov/MeetingAbstracts/ma?f=102255397.html
BACKGROUND: The acquired immunodeficiency syndrome has become one of the greatest problems of public health worldwide. The occupational exposure is common in the clinical settings and represents an important risk for health care personnel. The estimated risk of contamination through percutaneous injuries involving HIV-contaminated sharp objects is 0,32%. However, many factors are known or suspected to affect the infection risk in specific cases, including the wound's depth, the volume of biological material and the viral load. Our objective is to study the detection of the HIV genome in needle-retained blood by the polymerase chain reaction and to compare with the viral load results. METHODS: Needle-retained blood samples from HIV-positive patients were obtained after sample collection to determine the HIV-1 viral load. Needles were collected just after blood drawing, washed with phosphate-buffered saline, and then discarded. Then, the RNA was extracted by the QIAamp viral RNA kit. The first-strand cDNA was synthesized using the Superscript kit and PCR amplified a fragment located inside the HIV-1 env gene. Positive controls used on this work were whole blood samples obtained from HIV-positive patients. RESULTS: Needles from 73 HIV-positive patients were studied. In these samples, 7 were PCR-positive (9,6%). Each patient sample was compared to their respective viral load. Negative results were observed in the 21 patients with undetectable viral load (below 80 copies/mL), and in 42 patients with detectable viral load below 150000 copies/mL. In 10 patients with viral load higher than 150000 copies/mL, 7 were PCR-positive (70%). CONCLUSIONS: These results reinforce the importance of the high viral load as risk factor for the HIV transmission to health care workers, especially in patients with viral load above 150000 copies/mL. Thus, access to HAART and good adherence to treatment would be probably capable of reducing the transmission risk in occupational accidents.
I was just going through the internet and found this article.which primarily says that after a blood draw the residual blood on the needle was immediately taken for a PCR test and they have the results also below : read it,from what i learn is that its not too high BUT its there.Hope it clears the worried people on how much time it takes for the hiv survial in a needle.
My Question to posters on medhelp: Do needle sticks have to be immediate to cause the hiv infection?or can it be after 10-20 minutes too?
anyways read what i found from this link http://gateway.nlm.nih.gov/MeetingAbstracts/ma?f=102255397.html
BACKGROUND: The acquired immunodeficiency syndrome has become one of the greatest problems of public health worldwide. The occupational exposure is common in the clinical settings and represents an important risk for health care personnel. The estimated risk of contamination through percutaneous injuries involving HIV-contaminated sharp objects is 0,32%. However, many factors are known or suspected to affect the infection risk in specific cases, including the wound's depth, the volume of biological material and the viral load. Our objective is to study the detection of the HIV genome in needle-retained blood by the polymerase chain reaction and to compare with the viral load results. METHODS: Needle-retained blood samples from HIV-positive patients were obtained after sample collection to determine the HIV-1 viral load. Needles were collected just after blood drawing, washed with phosphate-buffered saline, and then discarded. Then, the RNA was extracted by the QIAamp viral RNA kit. The first-strand cDNA was synthesized using the Superscript kit and PCR amplified a fragment located inside the HIV-1 env gene. Positive controls used on this work were whole blood samples obtained from HIV-positive patients. RESULTS: Needles from 73 HIV-positive patients were studied. In these samples, 7 were PCR-positive (9,6%). Each patient sample was compared to their respective viral load. Negative results were observed in the 21 patients with undetectable viral load (below 80 copies/mL), and in 42 patients with detectable viral load below 150000 copies/mL. In 10 patients with viral load higher than 150000 copies/mL, 7 were PCR-positive (70%). CONCLUSIONS: These results reinforce the importance of the high viral load as risk factor for the HIV transmission to health care workers, especially in patients with viral load above 150000 copies/mL. Thus, access to HAART and good adherence to treatment would be probably capable of reducing the transmission risk in occupational accidents.
People that post in this forum do not have occupational exposure. Those that have occupational exposures have explicit guidelines that are followed by their health care facilities.
i know that most of the people here do not have occupational exposures,but some have as i have read here.anyways i don't wanna argue with that as you know more since u have been on this site for very long.
its just that i want to help people here as i am sure they are worried about such exposures too(like a needle ***** )
i would like you to answer my question below as you are experienced pls :
Do needle sticks have to be immediate to cause the hiv infection?or can it be after 10-20 minutes too?
its just that i want to help people here as i am sure they are worried about such exposures too(like a needle ***** )
i would like you to answer my question below as you are experienced pls :
Do needle sticks have to be immediate to cause the hiv infection?or can it be after 10-20 minutes too?
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