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#1 Posted : 24 July 2009 09:57:00(UTC)
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Posted By Safetygirl Hi all, we have recently distributed hand sanitiser gel throughout our workplace, I am now trawling through the net looking for an eye catching 'please clean your hands' sign. All that i can find is a 'wash' your hands sign, which is not suitable. Would anyone know of one, or have one i could use? thanks a million safetygirl
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#2 Posted : 24 July 2009 10:04:00(UTC)
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Posted By Raymond Rapp Safetygirl Why not write your own? Such as, 'washing hands is good for you - if want to prevent catching flu'. Bit corny I guess, but I'm sure you get the picture. Ray
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#3 Posted : 24 July 2009 10:13:00(UTC)
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Posted By Gerry Mcaleney Hi Safetygirl, We use one which you can download from the World health Organisation website, it shows a technique for washing your hands and other relative info, you should find lots of facts about it and they are free. If you have a problem with it send me an e;mail and i'll try to send you a link.....Gerry
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#4 Posted : 24 July 2009 10:19:00(UTC)
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Posted By Peter Zunda There's quite a number available here; http://www.washyourhandsofthem.com Although, in general, aimed at health workers, several are suitable for other uses.
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#5 Posted : 24 July 2009 10:29:00(UTC)
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Posted By Bob Youel Have you undertaken your COSHH risk assessments - think about it! I really think that people should use common sense e.g. evaluate the average flu deaths etc against the expected and current H1N1 flu deaths etc and you will see what I mean i.e. do we sanitise everything for the average flu outbreak? And as far as I can find out, work related RTA deaths and after effects far outstrip many illness related deaths irrespective of the source; so do we stop using cars? Apparently the US has had more/~ the same RTA deaths and life changing bad injuries than they have had war deaths etc even when you combine together the figures from all the wars that it has fought! One company that I know have put in sanitising facilities for all its office staff - commendable you may think - but as usual the lads on the shop floor have been left out! Please can we not use common sense or are those in the know being less frank than they could be?
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#6 Posted : 24 July 2009 10:56:00(UTC)
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Posted By Safetygirl peter, gerry raymond thanks very much for your advise. Kind regards safety girl
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#7 Posted : 24 July 2009 11:13:00(UTC)
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Posted By Chris Packham I still have to find any convincing evidence that the virus can migrate from the hand to the lower regions of the lungs, which is what must happen with swine flu for infection to occur. This is not to say that high standards of hand hygiene are not desirable, but what contribution to preventing swine flu it will make is, in my view, open to question. Safetygirl - if you drop me an e-mail I have something that might be of interest. Chris
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#8 Posted : 24 July 2009 11:35:00(UTC)
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#9 Posted : 24 July 2009 11:36:00(UTC)
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Posted By Dave Merchant "I still have to find any convincing evidence that the virus can migrate from the hand to the lower regions of the lungs" So the tens of thousands of papers studying the epidemiology of influenza aren't convincing enough for you? The fact viral infections such as influenza and the common cold are transmitted in the overwhelming proportion of cases by digital-oronasal transfer has been known for decades. It doesn't magically "migrate" up your arm - people transfer material to their mouth, lips or nostrils without noticing, and then inhale it. Given particle sizes are so small, it can diffuse to anywhere during subsequent breath cycles.
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#10 Posted : 24 July 2009 12:04:00(UTC)
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Posted By John Richards The route of infection/contagion is via mucous membranes. Of which the oral/nasal are the most dominant, but also the ocular mucous membrane offers a route for infection/contagion.
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#11 Posted : 24 July 2009 12:11:00(UTC)
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Posted By Descarte To play devils advocate: "Since your fingers can’t touch your lungs, washing your hands won’t likely prevent flu viruses from entering deep into your lungs. NO matter how sterile your hands are, you’ll still be fully exposed to airborne Influenza viruses entering and depositing into your lungs to cause disease." Quote from Federal Interagency Committee for Indoor Air Quality Environmental Protection Agency June 3, 2009. In a study relating the current Swine Flu to SARS transmission. Also - "Experts acknowledged that “sanitizing surfaces” of schools where occupants had contacted the swine flu was an basically aworthless exercise" It is not a rhinovirus which primarily causes infection in the nose and upper respiratory system. Influenza A effects the deep respiratory system and infection is likely caused by inhalation of infectious droplet nuclei (0.3ug or less) which can travel up to 160 feet from source. Likely sources are coughing, sneezing, vomiting and diarrhea, suprisingly with the latter contributing the greatest through Toilet Water Aerosolization (as shown by 2003 Hong Kong SARS Virus Epidemic studies) Eg. Wang Kaixiwas infected with SARS who visited a hotel guest’s bathroom having diarrhea, he probably infected over 200 fellow residents through toilet water aerosolization. The twist was many were over 160 feet away from his apartment. Spread can be aided by indoor airmovement systems, poor ventilation to a safe area and/or lack of HVAC / UV air filters. Des
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#12 Posted : 24 July 2009 13:03:00(UTC)
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Posted By Swis Agree with Chris here.. Having a scientific background personally …. there’s hardly any evidence that viral infection can be transmitted through hands. And yet… every organisation is in the hype of promoting the hand washing routines to eliminate the spread of flu. No doubt washing hands is a good method for personal hygiene and spread of bacterial infection but viral???
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#13 Posted : 24 July 2009 13:10:00(UTC)
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Posted By Raymond Rapp In that case, why do hospital wards provide sterile hand gels at the entrance to the wards? Presumably this is for other types of viruses that can be transmitted by touch?
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#14 Posted : 24 July 2009 13:19:00(UTC)
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Posted By Swis In hospitals, we encounter, different types of microbes not just viruses.. also hospitals contains people which are more susceptible to catch all sorts of infections etc..
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#15 Posted : 24 July 2009 13:37:00(UTC)
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Posted By A Campbell http://www.hpa.org.uk/we...32817665?p=1240732817665 Why is the HPA advising hand washing and cleaning hard surfaces e.g. door handles etc?? Is someone giving them unclear advice regarding transmission risk of the virus?
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#16 Posted : 24 July 2009 13:44:00(UTC)
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Posted By ColinPink Little surprissed by the comments on this thread. The World Health Organisation said this on the 11th June "What can I do to protect myself from catching influenza A(H1N1)? The main route of transmission of the new influenza A(H1N1) virus seems to be similar to seasonal influenza, via droplets that are expelled by speaking, sneezing or coughing. You can prevent getting infected by avoiding close contact with people who show influenza-like symptoms (trying to maintain a distance of about 1 metre if possible) and taking the following measures: avoid touching your mouth and nose; clean hands thoroughly with soap and water, or cleanse them with an alcohol-based hand rub on a regular basis (especially if touching the mouth and nose, or surfaces that are potentially contaminated); avoid close contact with people who might be ill; reduce the time spent in crowded settings if possible; improve airflow in your living space by opening windows; practise good health habits including adequate sleep, eating nutritious food, and keeping physically active. " So until a higher authority says otherwise i suggest you stick to the guidance on washing hands. With regards to COSHH, its not massive ill health effects your organisations should be trying to stop its the massive tempory loss of work force. Some papers are suggesting 8% of the population will get ill every week. Thats a lot of your staff and income generating potential. The only reason to not encourage staff to not wash hands is the massive exposure from everyones private life. However every little helps i reckon. Colin
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#17 Posted : 24 July 2009 13:45:00(UTC)
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Posted By Bob Youel sometimes its better to do something than to do nothing even if that something does not actually do anything that is really constructive; note WWII I am not saying that H1N1 is real I am just making a point
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#18 Posted : 24 July 2009 14:11:00(UTC)
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Posted By ColinPink Sorry bob, Just reread my statemnt and it doesn't read well. I agree that things like road traffic accidents are a much greater risk to loss of life etc than swine flu in its current form. But swine flu will have a much greater effect in the short term. Colin
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#19 Posted : 24 July 2009 14:33:00(UTC)
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Posted By Swis I think a lot of confusion comes from viruses which can be transmit an infection through ingestion (such as Hep A). Where there target organ is not the lungs… but as Chris mentioned earlier.. the target organ for influenza is lungs and transmission via hands is negligible. But as Bob puts it in a philosophical way; “sometimes its better to do something than to do nothing even if that something does not actually do anything that is really constructive”
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#20 Posted : 24 July 2009 15:27:00(UTC)
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Posted By Chris Packham At no time do I believe I suggested that hand hygiene was not important. I am a great believer that we need to maintain high standards of hand hygiene. What I was suggesting was that the main risk for infection, whether for normal influenza or swine flu was inhalation of airborne virus due to an infected person sneezing of coughing, and that for this type of infection hand hygiene is not the major route for us to concern ourselves with. Other micro-organisms use other routes of entry and this is where hand hygiene can be the most significant route of contact. Chris
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#21 Posted : 26 July 2009 17:01:00(UTC)
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Posted By Phil Rose I do not profess to be an expert on virology or similar but I am also confused by the various posts. Looking at all thew various information that we have had from NHS, HPA, PCT, COBRA etc I am pretty convinced that hand hygiene is a pretty important part in trying to limit peoples exposure to flu viruses.
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#22 Posted : 26 July 2009 19:26:00(UTC)
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Posted By Dave Merchant Chris is not helping with your confusion as what he's saying in his replies is largely incorrect. Allow me to clarify: 1) H1N1 is an UPPER respiratory tract infection, because the H1 (hemagglutinin-1) surface protein targets cells in that part of the lungs. H5N1 (Avian flu) in contrast targets deep alveolar tissues which is why it's so hard to spread into a pandemic but more likely to cause death from pneumonia, and why we're worried about a possible hybrid with H5N1's virulence and H1N1's transmissibility. 2) In close unprotected contact (less than 1m) direct airborne droplet transmission is the most likely route, as the majority of droplets expelled in a cough or sneeze travel less than 1m (due to gravity and drag). Sneeze in someone's face and sure it spreads, but people don't do that, and apart from specific situations (crowded public transport etc.) you rarely get that close to a stranger's face for long enough to allow them to sneeze in it - especially now. This is where the NHS/HPA mask guidance for healthcare gets its 1m rule from. 3) Above 1m, two transmission routes dominate - indirect via hands and direct via sub-micron airborne particles. In an enclosed environment with suitable humidity and UV levels, some of the smallest particles from a cough or sneeze can be held in mid-air by a combination of currents and Brownian motion; potentially allowing them to be inhaled some time later. The longest this has been shown to be viable, in a sealed test chamber, was 24 hours. In a typical room it'll much be less than that, and often they're too small for basic masks to stop them anyway. 4) Transfer to surfaces, either by fallout from airborne particles or transfer from the hands of the patient, can lead to viable levels of H1N1 persisting for up to 24 hours on smooth metals (handles, lift buttons etc.), up to an hour on fabrics. It depends on how porous it is - the virus doesn't remain viable on skin for more than about 15 minutes, but several published studies have shown we touch our lips and noses many times an hour without noticing, so this method of transfer is a lot more likely than people tend to think. 5) It is indeed true that if everyone wore a P3 mask, all day, every day, then almost nobody would be infected. However people don't wear them properly (they fiddle with them, scratch their noses, etc.) and masks tend to make the public _less_ likely to keep to strict hand hygiene than if they aren't wearing one. There is also a logistics counter-effect, as P3 masks (even if they were available in sufficient numbers) would require delivery or collection, meaning more travelling and peer association - on balance we consider those issues outweigh any benefits from directing the public to wear masks in general life. There's really no point in second-guessing the official guidance you're getting from HPA/WHO; not only do you not know as much as they do, but if you're shown to be taking a different approach and anyone even hints they may have been infected because of it, I sure as heck wouldn't want to be your underwriter. So, if you're caring for a patient, wear a mask when you're in their close presence. Wear it properly, and wash your hands a lot. Everyone else and everyplace else, wash your hands a lot and don't sneeze in someone's face. They'll punch you.
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#23 Posted : 26 July 2009 21:06:00(UTC)
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#24 Posted : 27 July 2009 08:15:00(UTC)
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Posted By Ian Blenkharn I could not agree more with Dave's commentary. I am afraid there are a few here that claim some sort of detailed knowledge, especially in aspects of microbiology but often in just about anything else that takes their fancy, and offer ex-Cathedra statements that are simply ridiculous. This latest offering stems from a chat with several [unnamed] microbiologists (http://www.iosh.co.uk/index.cfm?go=discussion.view&forum=1&thread=46059). It is wrong. It is hopelessly wrong. It is dangerously wrong, despite attempts to back off and moderate those ex-Cathedra statements in later postings. Dave, your description of the transmission routes for influenza virus are correct. Not for the first time have I found it necessary to correct such utter rubbish. see http://www.iosh.co.uk/in...iew&forum=1&thread=46059 and http://www.iosh.co.uk/in...iew&forum=1&thread=39030 I urge others to take the information provided by others with the greatest caution. As it says in the heading of these forum pages 'Postings made by forum users should not be relied upon in making or refraining from making any decision.' That is very good advice. The offerings that I read from some continue to be hopelessly incorrect and dangereously misleading. Ian Blenkharn Consultant Microbiologist
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#25 Posted : 27 July 2009 09:19:00(UTC)
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Posted By Swis I would appreciate some reference documents (even one will do) from a competent source (such as mediacl journal, magazine etc) supporting the arguement transmition of flu can be avoided by washing hands.... There's no need to take statements/suggestion offensively... according to my knowledge through my higher studies… I have not comes across any report suggesting the transfer of any virus (except food borne viruses) via hands and/or cutlery etc (including HIV and other blood borne viruses)… They were just myths and some people still tend to believe such myths…. I would highly appreciate if someone could provide any evidence in terms of providing a reference as such… as it will be useful for everyone especially to convince me..... Swis
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#26 Posted : 27 July 2009 09:39:00(UTC)
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Posted By Swis Ian, You've mentioned some other thread discussing the transmission of viral disease but forgot to mention the following… Thought it may also be useful to the members. No offence meant.
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#27 Posted : 27 July 2009 09:45:00(UTC)
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Posted By Barrie (Badger) Etter Safetygirl You have mail
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#28 Posted : 27 July 2009 09:48:00(UTC)
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Posted By Swis Ooops!! Sorry forgot to add the link; http://www.iosh.co.uk/in...iew&forum=1&thread=45794 Ian – I hope that when I ask for evidence you would not come with the following comments as posted on the above mentioned link; “Swis - I have no intention of providing you with the 'evidence' that you seem to expect”.
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#29 Posted : 27 July 2009 09:50:00(UTC)
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Posted By Dave Merchant Bean B, Moore BM, Sterner B, Peterson LR, Gerding DN, Balfour HH, Jr. Survival of influenza viruses on environmental surfaces. J Infect Dis 1982; 146:47-51. Nicas M and Best D. A study quantifying the hand-to-face contact rate and its potential application to predicting respiratory tract infection. J Occup Environ Hyg 2008; 5:347-352. Winther B, McCue K, Ashe K, Rubino JR, Hendley JO. Environmental contamination with rhinovirus and transfer to fingers of healthy individuals by daily life activity. J Med Virol 2007; 79:1606-1610. Ansari SA, Springthorpe S, Sattar S, Rivard S, Rahman M. Potential role of hands in the spread of respiratory viral infections: studies with human Parainfluenza virus 3 and rhinovirus 14. J Clin Microbiol 1991; 29:2115-2119.
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#30 Posted : 27 July 2009 10:04:00(UTC)
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Posted By Ian Blenkharn Cochrane Database Syst Rev. 2007 Oct 17;(4):CD006207. Interventions for the interruption or reduction of the spread of respiratory viruses. Jefferson T, Foxlee R, Del Mar C, Dooley L, Ferroni E, Hewak B, Prabhala A, Nair S, Rivetti A. This is perhaps the most Cochrane authoratative review of the sum of published literature I hope that you read it, All 67 pages of it. Even some of it.
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#31 Posted : 27 July 2009 10:08:00(UTC)
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Posted By martinw This is becoming a clash of expert witnesses. Or in the parlance, a p***ing contest. Neither of you will back down as you both feel that you are correct. Keep it up! Most entertaining.
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#32 Posted : 27 July 2009 10:36:00(UTC)
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Posted By Barrie (Badger) Etter The reason d etare for hand washing, lets breaking it down. 1. A person can contract the virus 24 - 48 hours before they realise they have it and consequently pass it on to others. 2. The body's immune system attempts to eject the virus via coughing or sneezing. 3. We humans have (mostly) been taught at mothers knee to either use a hankercheif or cover our faces when coughing or sneezing, therefore an aqueous vapour spray makes contact with hands and virus is out of body. 4. Human carrier meets client and shakes hands, tranfer point. 5. Client has itch to eye, nose or places some for of food in mouth ie, sweet, transfer complete, next subject infected. The eyes, nose and mouth are recognised under CoSHH as routes of entry for hazardous substances and whilst typing these notes I've eaten a snack, scratched my nose and rubbed my eye. These are all sub concious actions we do everey day, so hand sanitisation should be a requirement for the protection of employees as reqd by HSWA. The only thing you cannot cater for is the unprotected sneezes that become airboure, unless you insist on face masks. But then I've been adised they only have limited value and would be reqd to be changed every 30 mins. Nuff said now. Badger
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#33 Posted : 27 July 2009 11:06:00(UTC)
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Posted By Swis Dave – your references 1) Bean B, Moore BM, Sterner B, Peterson LR, Gerding DN, Balfour HH, Jr. Survival of influenza viruses on environmental surfaces. J Infect Dis 1982; 146:47-51. The study concluded that the virus survived on hands for up to 5 min after transfer from the environmental surfaces. Now how a virus could can transmit a disease from hands if it is not being able to live for 5 mins. And how practical would it be to wash hands every couple of minutes at work place.? 2) Nicas M and Best D. A study quantifying the hand-to-face contact rate and its potential application to predicting respiratory tract infection. J Occup Environ Hyg 2008; 5:347-352. The number of hand contacts to the eyes, nostrils, and lips was scored during study… nothing to do with virus transmission. 3) Winther B, McCue K, Ashe K, Rubino JR, Hendley JO. Environmental contamination with rhinovirus and transfer to fingers of healthy individuals by daily life activity. J Med Virol 2007; 79:1606-1610. The study states that virus on surfaces can be transferred to a fingertip during normal daily activities but it states nothing with the transmission of viral infection. (no-one’s arguing the fact that contamination of hands is possible.) however, transmission of disease is highly unlikely. 4) Ansari SA, Springthorpe S, Sattar S, Rivard S, Rahman M. Potential role of hands in the spread of respiratory viral infections: studies with human Parainfluenza virus 3 and rhinovirus 14. J Clin Microbiol 1991; 29:2115-2119. The study states that the relatively rapid loss of viral infectivity on hands suggests that their role in the direct spread of influenza viruses is limited. Further more, relative importance of air , hands, and environmental surfaces in the spread of rhinovirus colds has been studied, but quantitative studies have not been carried out. http://jcm.asm.org/cgi/content/abstract/29/10/2115 Ian – your reference Cochrane Database Syst Rev. 2007 Oct 17;(4):CD006207. Interventions for the interruption or reduction of the spread of respiratory viruses. Jefferson T, Foxlee R, Del Mar C, Dooley L, Ferroni E, Hewak B, Prabhala A, Nair S, Rivetti A. First of all, I would like to clear that there has been an newer revision of the this report (issue 3,2009). It elaborates on the six case-control studies suggesting that implementing barriers to transmission, isolation, and hygienic measures are effective at containing respiratory virus epidemics. However, there were no studies on the roles of hand in the transmission of viral disease. Furthermore, this report also denies that fact that antiviral and vaccination can prevent the spread of disease., which in my opinion is a very poor statement.
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#34 Posted : 27 July 2009 11:22:00(UTC)
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Posted By Swis Virus need a host cell in order to replicate. It can not survive on it’s own without a host cell. Virus is always in the processes of replication with or without host cell. These mutations ultimately cause the virus to die after a short period of time in the absence of a host cell, hence weaker micro-organisms tend to loose the tendency to cause a disease (antibiotic rule). No doubt virus can be spread from an infected person to the surrounds. It’s life cycle varies on different surfaces. A lot of studies have shown that virus can only remain live on human hands for a few minutes ( 2-7 minutes, depending on which study you go for). So if a person touches their face etc with contaminated hands, there’re hardly any chance that they will transfer the virus to their face. ( don’t forget that it will take further period for virus to transfer from face to permeable membrane to reach the target tissues – so if a virus has only few minutes of life on human skin… transfer from hands to face and from face to target tissues presents with limit any chance of transmission of disease) My argument would be if a virus can not stay alive for more than a few minutes, how practical would it be for a worker to wash their hands with that time frame. And seconds
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#35 Posted : 27 July 2009 11:27:00(UTC)
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Posted By Swis Last but not least… There’re several guidance documents available on Blood Borne Viruses (HIV, Hepatitis B & C etc) on HSE website and not a single one contains importance of ‘hand washing’ in the spread of viral infection. Why not? Purely because there’s no solid evidence of transmission of viral disease (except foodborne viruses) through hands.
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#36 Posted : 27 July 2009 11:32:00(UTC)
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Posted By IOSH Moderator As gripping as this clash of "expert witnesses" is, I believe it has deviated form the original request posted by Safetygirl. Please restrict this thread to answering her question, which was I believe "links to an eye catching awareness poster" [I paraphrase]. If you want to discuss the efficacy of the advice published or the underlying Microbiology, then please start a separate thread, or risk this one being locked. Thanks. Jonathan
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#37 Posted : 27 July 2009 11:41:00(UTC)
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Posted By Swis Safety Girl, You may find the following website useful; http://www.mass.gov/?pag...handwashing&csid=Eeohhs2
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#38 Posted : 27 July 2009 11:42:00(UTC)
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Posted By Barrie (Badger) Etter Dear Moderator I emailed Safetygirl a wad of posters afor putting my pen'th in .. am I partly forgiven? Badger =O}
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