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Hand Sanitizer Kurang 60% Alcohol tidak Membunuh Covid-19. Sila gunakan ramuan N
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Edited by VirusCinta at 16-3-2020 02:16 PM
Coronavirus: not all hand sanitisers work against it – here's what you should use
Manal Mohammed, University of Westminster
March 13, 2020 2.06pm GMT
Updated March 13, 2020 3.08pm GMT
Since the outbreak of COVID-19, sales of hand sanitisers have soared. It’s become such a sought-after product that pharmacies and supermarkets have started limiting the number that people can buy at one time. New York state has even announced it will start producing its own hand sanitiser to meet demand. Though hand sanitisers can help reduce our risk of catching certain infections, not all hand sanitisers are equally effective against coronavirus.
As with other viral respiratory infections – like the common cold and flu – the novel coronavirus (called SARS-CoV-2) is mainly spread when virus-laden droplets from a person’s mouth or nose are transferred to other people. However, a recent study has suggested that it can also spread through faeces.
Aside from inhaling droplets, you can also get respiratory viruses including SARS-CoV-2 by touching anything contaminated with the virus and then touching your face, in particular your mouth or nose. We touch our faces a lot without even realising it. A study from New South Wales found that people touch their faces about 23 times an hour
Washing with warm water and soap remains the gold standard for hand hygiene and preventing the spread of infectious diseases. Washing with warm water (not cold water) and soap removes oils from our hands that can harbour microbes.
But hand sanitisers can also protect against disease-causing microbes, especially in situations when soap and water aren’t available. They’re also proven to be effective in reducing the number and type of microbes.
There are two main types of hand sanitisers: alcohol-based and alcohol-free. Alcohol-based hand sanitisers contain varying amounts and types of alcohol, often between 60% and 95% and usually isopropyl alcohol, ethanol (ethyl alcohol) or n-propanol. Alcohol is known to be able to kill most germs.
Alcohol-free hand sanitisers contain something called quarternary ammonium compounds (usually benzalkonium chloride) instead of alcohol. These can reduce microbes but are less effective than alcohol.
Not only are alcohol-based hand sanitisers found to be effective at killing many types of bacteria, including MRSA and E coli, they’re also effective against many viruses, including the influenza A virus, rhinovirus, hepatitis A virus, HIV, and Middle East respiratory syndrome coronavirus (MERS-CoV).
Destroying viruses
Alcohol attacks and destroys the envelope protein that surrounds some viruses, including coronaviruses. This protein is vital for a virus’s survival and multiplication. But a hand sanitiser needs to be at least 60% alcohol in order to kill most viruses.
Hand sanitisers with less than 60% alcohol were also found to be less effective at killing bacteria and fungi and may only reduce the growth of germs rather than killing them outright.
And even hand sanitisers containing 60% alcohol can’t remove all types of germs. Studies have found that hand washing is more effective than hand sanitisers at removing norovirus, Cryptosporidium (a parasite that can cause diarrhoea), and Clostridium difficile (bacteria which cause bowel problems and diarrhoea).
With shortages leading some people to try and make their own hand sanitisers, it’s also important to know these might not be as effective as commercially available products.
Washing hands for 20 seconds with warm water works best. Hafiez Razali/ Shutterstock
If hands are visibly dirty, hand washing with soap and water is more effective than using alcohol-based hand sanitisers. Research has found that the detergent effect of soap and the friction of washing work together to reduce the number of microbes on our hands, as well as the dirt and organic materials.
Sneezing or coughing into your hands also requires more than just a pump of hand sanitiser to disinfect them. This is because if your hands are contaminated with mucous, the hand sanitiser might not work as well because mucous acts to protect microbes.
As a result, the best and most consistent way of preventing the spread of the coronavirus – and reducing your risk of contracting it – remains washing your hands with soap and water as a first choice, and avoiding touching your face as much as possible.
But alcohol-based hand sanitisers (with at least 60% alcohol) are a practical alternative when soap and water aren’t available. If you are using hand sanitiser then, just like when washing with soap and water, you need to make sure you cover your hands (including between your knuckles, wrists, palms, back of your hand and your fingernails) fully, rubbing it in for at least 20 seconds so it’s truly effective. |
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Post time 16-3-2020 02:19 PM
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Tak payah nak gedik pakai hand sanitizer ye....ala pakai sebab trending konon...padahal Hand Sanitizer murah cap Ayam.
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Tinggi sgt alkohol pun mau melecur kulit.....
Bkn virus je yg mati...yg guna pun blh kojol.... |
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Nenek aku xde buat ramuan sabun.sape2 ada nenek buat sabun sedekah kat aku seketoi dua |
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jazaa100 replied at 16-3-2020 06:22 AM
Tinggi sgt alkohol pun mau melecur kulit.....
Bkn virus je yg mati...yg guna pun blh kojol....
Kandungan alcohol yg tinggi x melecur kulit.. Cuma x effective utk lwan bacteria, microorganism segala.. |
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Author |
Post time 16-3-2020 02:27 PM
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JohnyEnglish replied at 16-3-2020 02:24 PM
Nenek aku xde buat ramuan sabun.sape2 ada nenek buat sabun sedekah kat aku seketoi dua
Uols gunakan je Petua nenek uols walaupun nenek uols bukan bangsa pencipta |
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Rasanya tiada banyak yang pakai sebab trending. Ramai pakai bila takde paip untuk sabun dan basuh tangan, contohnya balik dari beli belah dan nak masuk kereta. Murah pun takpe asalkan alkohol tinggi. Rasanya harga murah ni alcohol tinggi tapi dia takde pelembab aloe vera gel. Pelembab dan pewangi dalam hand sanitizer ni yang buat harga jadi mahal. |
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Post time 16-3-2020 02:28 PM
From the mobile phone
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jazaa100 replied at 16-3-2020 02:22 PM
Tinggi sgt alkohol pun mau melecur kulit.....
Bkn virus je yg mati...yg guna pun blh kojol....
Bancuh sabun YG lite2 gitu dalam botol hand sanitizer YG branded uols.....baru lah in trend gitu. |
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beloomberk replied at 16-3-2020 02:26 PM
Kandungan alcohol yg tinggi x melecur kulit.. Cuma x effective utk lwan bacteria, microorganism s ...
Iya ke?....2hari lepas aku tanya org yg kuarkn hand sanitizer ni...dia kata alkohol tgi sgt blh melecur kulit....60% - 70% pun dah ok |
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VirusCinta replied at 16-3-2020 02:28 PM
Bancuh sabun YG lite2 gitu dalam botol hand sanitizer YG branded uols.....baru lah in trend gitu.
Pd hal sabun lux je kannnn..... |
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tadi aku pergi toilet dekat opis ni, lepas dia kencing, gegarkan sikit anu tu, tarik zip terus blah... bukan nak basuh guna air sabun ke apa... |
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MissVixen replied at 16-3-2020 02:27 PM
Rasanya tiada banyak yang pakai sebab trending. Ramai pakai bila takde paip untuk sabun dan basuh ta ...
Kan.
Apehal nak pakai sebab trending?
Takkan tengah kerja (cth macam cashier, teller bank, retail etc), nak gi washroom setengah jam sekali basuh tangan.
Bukan semua tempat kerja ada pantry/sinki wei. |
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jazaa100 replied at 16-3-2020 02:22 PM
Tinggi sgt alkohol pun mau melecur kulit.....
Bkn virus je yg mati...yg guna pun blh kojol....
Berkesan kalau kandungan alcohol lebih 60% hingga 90% je.
https://www.google.com/amp/s/www.livescience.com/amp/hand-sanitizer.html
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Author |
Post time 16-3-2020 02:33 PM
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aderaderker replied at 16-3-2020 02:31 PM
Kan.
Apehal nak pakai sebab trending?
Takkan tengah kerja (cth macam cashier, teller bank, retai ...
Bukan ke out of stock sebab in trend ke?
Gewdiksss gituh |
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jazaa100 replied at 16-3-2020 06:22 PM
Tinggi sgt alkohol pun mau melecur kulit.....
Bkn virus je yg mati...yg guna pun blh kojol....
Tak kak jaza.. Sy buat sendiri guna 99% alcohol.. Tak melecur.. |
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aderaderker replied at 16-3-2020 02:31 PM
Kan.
Apehal nak pakai sebab trending?
Takkan tengah kerja (cth macam cashier, teller bank, retai ...
Betul. Jangan kutuk orang pakai hand sanitizer. Sekurang kurangnya mereka ada usaha. Nasib la malaysia ni ada banyak sinki dan sabun. Negara lain, kedai makan mana ada sinki basuh tangan. |
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VirusCinta replied at 16-3-2020 02:33 PM
Bukan ke out of stock sebab in trend ke?
Gewdiksss gituh
Banyak je stock sekarang ni.
Tinggal pandai pilih je.
Ko yg gedik kut. |
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Author |
Post time 16-3-2020 02:35 PM
From the mobile phone
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jazaa100 replied at 16-3-2020 02:30 PM
Pd hal sabun lux je kannnn.....
Kannn...x jumpa paip lap dgn tissue atau dgn handkerchief je lah sabun tu.
Complex betul pemikran orang sekarang...alcohol NI jadi pilihan sebab Mudah meruap je...kering sendiri.
Padahal Sabun paling efektif berbanding alcohol 60% tu. |
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Edited by beloomberk at 16-3-2020 06:38 AM
jazaa100 replied at 16-3-2020 06:29 AM
Iya ke?....2hari lepas aku tanya org yg kuarkn hand sanitizer ni...dia kata alkohol tgi sgt blh me ...
Nope.. X melecur kulit.. Mgkin org tu main claimed je.. Klu acid tu, yes melecur kulit... Certain alcohol dgn percentage yg sgt tggi akan buat kulit kering.. High percentage of alcohol akan sgt cpat meresap, kna kat tgn pon trus hilang diserap kulit..
70% alcohol ( ethanol) plus 30% sterile water is way better than dettol and other hand sanitizer yg cmpur mcm2 ( vco la segala mak nenek) dlm tu.. (dari segi effective mlwn microbes)..
Hand sanitizer yg ok yg hospital standard n lab standard |
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beloomberk replied at 16-3-2020 02:35 PM
Nope.. X melecur kulit.. Mgkin org tu main claimed je.. Klu acid tu, yes melecur kulit... Certain ...
Iya...iya....dia ada claimed pasal kulit akn jadi kering....& dia pun guna ethanol bkn metanol sbb dia kata metanol tak effective..... |
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Post time 16-3-2020 02:15 PM
变色卡
