Hector, I sent you a private message...was wondering if you got it. I don't think my mail system is working properly. Is anyone else having problems? Or, as usual, just ME??? lol
I was told even when junkies use bleach to clean their syringes it is NOT 100% effective, it's better than nothing but virus' can still perhaps survive.
Thanks Naya!
From the CDC
http://www.cdc.gov/hepatitis/C/cFAQ.htm
How long does the Hepatitis C virus survive outside the body?
The Hepatitis C virus can survive outside the body at room temperature, on environmental surfaces, for at least 16 hours but no longer than 4 days.
How should blood spills be cleaned from surfaces to make sure that Hepatitis C virus is gone?
Any blood spills — including dried blood, which can still be infectious — should be cleaned using a dilution of one part household bleach to 10 parts water. Gloves should be worn when cleaning up blood spills.
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CaviCide
Surface Disinfectant/Decontaminant Cleaner
CaviCide is a convenient, ready-to-use, intermediate-level surface disinfectant which is effective against TB, HBV, HCV, viruses (hydrophilic and lipophilic), bacteria (including MRSA and VRE) and fungi. It is safe for all areas of the facility including NICU, operating rooms, isolation rooms, patient care areas and laboratories. When used as directed, it will also effectively clean and decontaminate critical and semi-critical instrumentation.
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Vancomycin Resistant Enterococcus faecalis (VRE)
Staphylococcus aureus with reduced susceptibility to vancomycin
Hepatitis B Virus (HBV)
Hepatitis C Virus (HCV)
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Human Immunodeficiency Virus (HIV-1)
Human Coronavirus (not associated with Severe Acute Respiratory Syndrome or SARS)
Influenza A2 Virus
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Cheers!
Hector
a) HCV Disinfection with Bleach
In vitro studies have shown that bleach is effective for inactivating many pathogens,
including HIV and hepatitis B44-46.
However, relatively little is known about the
inactivation of HCV by chemical germicides18. The lack of an in-vitro cultivation system
for HCV limits the ability to investigate the efficacy of disinfection. Published
information comes mainly from experiments in which the integrity of viral particles,
antigens, nucleic acid and/or enzymes is used as a measure of the presence or absence
of infectious virus. Such tests may show viral presence, but do not necessarily answer
questions of infectivity18. Even polymerase chain reaction (PCR) detection methods
cannot distinguish between infectious and inactivated virus47.
To address this challenge, some researchers have turned to animal models.
Unfortunately, the only truly appropriate animal model is the chimpanzee. Given their
endangered status chimpanzee studies are both ethically difficult and very expensive18.
More recently, other viruses including the bovine diarrhea virus (BVDV) have been
used as surrogates for HCV18,48.
The current challenge of determining true infectivity limits our ability to evaluate
appropriate dilution and exposure times. A 1:10 dilution of domestic bleach is
commonly recommended for clean up of blood spills, and this concentration should be
adequate to deal with HCV (and HBV) in blood18, although supportive evidence is
lacking. However, blood remaining in a syringe poses different challenges than surface
blood spills. The risks of transmission from an improperly cleaned and disinfected
syringe are much higher than from traces of blood left on an outside surface. Studies
have shown that undiluted bleach requires shorter exposure times than diluted bleach
to be effective against HIV-1. It may also be more effective in the presence of residual
blood in the syringe49. Presumably, the same would be true against HCV.
5
b)
As far as I know from other forum members to clean up HCV infected blood use a 1/10th diluted bleach mixture.
b
Old good bleach.Make solution consistingfrom 1 part of bleach with 9parts of water if you have a blood spill- soak the area with this solution for about 15mins.They use Cavicide disinfectants in hospitals these days which kills all the bags