133 lines
4.3 KiB
Plaintext
133 lines
4.3 KiB
Plaintext
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(word processor parameters LM=8, RM=75, TM=2, BM=2)
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Taken from KeelyNet BBS (214) 324-3501
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Sponsored by Vangard Sciences
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PO BOX 1031
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Mesquite, TX 75150
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There are ABSOLUTELY NO RESTRICTIONS
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on duplicating, publishing or distributing the
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files on KeelyNet except where noted!
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February 23, 1992
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AIDS2.ASC
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This file shared with KeelyNet courtesy of Mike Peraaho.
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Lancet - Resistance of AIDS Virus at Room Temperature -
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September 28, 1985
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LAV/HTLV-III, the agent causing AIDS, has been isolated from body
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fluids (blood, semen, saliva, tears). Its isolation in saliva
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prompted us to investigate the possibility of TRANSMISSION BY
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SALIVA, and we have studied the sensitivity of LAV/HTLV-III at room
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temperature.
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The virus used for the infectivity assay was left at room
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temperature for 0, 2, 4, or 7 days in a sealed tube or ALLOWED TO
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DRY in a petri dish.
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After the times indicated in the figure the virus was used to infect
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stimulated T lymphocytes and viral production was determined in
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cell-free supernatant by testing for the reverse transcriptase
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activity twice a week.
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[The data] shows the UNUSUAL STABILITY of HTLV-III at room
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temperature. No significant difference was found between 0, 2, or 4
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days. Only a slight decrease is noted with a delay in the virus
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production indicating a loss of few infectious particles after 7
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days at room temperature.
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Two petri dishes containing 25,000 cpm equivalent reverse
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transcriptase of dry virus were kept at room temperature for 4 or 7
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days and then resuspended in .220 ml water and used to measure the
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infectivity.
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As [the data show], significant numbers of viral particles are then
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inactivated, but some infectious virus is still present since
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release of virus was seen on day 10. This result indicates that the
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virus is RESISTANT AT ROOM TEMPERATURE, either in DRY form OR LIQUID
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medium.
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This resistance of LAV at room temperature MAY EXPLAIN THE
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APPEARANCE OF SOME CASES of AIDS cases in NON-RISK GROUPS.
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To prevent possible contamination by viral particles in dry or
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liquid form hygiene should be increased in the general population.
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Moreover, some more safety precautions should be taken in
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Page 1
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laboratories and in hospitals and by dentists who use a vacuum pump
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for saliva aspiration. Indeed, these data strongly support the use
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of disinfectants found to be effective against the AIDS agent.
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[F. Barre-Sinoussi et al., Resistance of AIDS Virus at Room
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Temperature, Lancet,
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28 September 1985, pp. 721-722.]
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--------------------------------------------------------------------
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If you have comments or other information relating to such topics
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as this paper covers, please upload to KeelyNet or send to the
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Vangard Sciences address as listed on the first page.
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Thank you for your consideration, interest and support.
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Jerry W. Decker.........Ron Barker...........Chuck Henderson
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Vangard Sciences/KeelyNet
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--------------------------------------------------------------------
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If we can be of service, you may contact
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Jerry at (214) 324-8741 or Ron at (214) 242-9346
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--------------------------------------------------------------------
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Page 2
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