CORONAVIRUS COVID-19
ABOUT THE VIRUS We all know about it, but not everyone knows how serious it is: The virus is offjcially called SARS-CoV-2 ● It is suspected that the virus was transmitted by animals ● to humans There are more than 2.4 million cases worldwide ● As of the 20th of April, it has killed over 165,000 people ● In latin, corona means ‘halo’. It’s called the coronavirus because the surface of the virus has projections which look like halos under a powerful microscope
DIFFERENCE BETWEEN BACTERIA AND VIRUSES Maybe you’ve learned about it in Biology, but viruses and bacteria ARE NOT the same: ● A virus is a lot smaller than bacteria ● Bacteria can live on its own, but a virus has to infect an organism to live ● Some bacteria are good, but a large number of viruses are harmful
WHY IS THE COVID-19 SO DANGEROUS? There are reasons why the coronavirus is so worrying: ● Since viruses are difgerent from bacteria, antibiotics will not work against viruses ● Current antiviral drugs do not work against it ● It is HIGHLY contagious ● A vaccine, which can provide people with immunity, still hasn’t been developed yet ● Many people lack the proper hygienic practices, causing the virus to spread very quickly
WHAT ARE THE SYMPTOMS? It is important to know the symptoms of the disease to avoid people that exhibit them: ● Fever ● Continuous dry coughing ● Shortness of breath ● Chest pains ● Diarrhea (sometimes)
A VIDEO EXPLAINING WHAT HAPPENS TO THE BODY DURING A CORONAVIRUS INFECTION:
HERE IS ANOTHER VIDEO:
HOW IS IT DIAGNOSED? If you do think you might have the virus, then Evolution you should definitely and immediately get it checked: ● Weak a mask and avoid spreading the virus further ● Go to a doctor ● Bring up any recent travels or who you had close contact with ● Saliva, nose, and throat swabs may be taken for testing
PERSONAL HYGIENE TIPS! WEAR SURGICAL MASKS The most obvious way everyone is already protecting themselves from the virus is by wearing a face mask: ● Face masks on sale have varying degrees of quality ● If you can, make sure to buy masks that have at least three layers ○ An outer fluid-repelling layer, a middle layer as a barrier to germs, and an inner moisture-absorbing layer ● However, any mask is better than no mask ● But NEVER REUSE a face mask
PERSONAL HYGIENE TIPS! WEAR SURGICAL MASKS When you buy face masks, check that it is has high percentages values for PFE and VFE PFE stands for Particulate Filtration Effjciency and VFE stands for Viral Filtration Effjciency. A high percentage for PFE and VFE means a high proportion of particulates such as germs, viruses and dust are filtered, preventing them from being breathed into our bodies.
A SHORT INFORMATIVE VIDEO ON HOW TO PROPERLY WEAR A MASK:
PERSONAL HYGIENE TIPS! ALWAYS WASH YOUR HANDS Make sure that you wash your hands before eating or touching any entrances to your body ● Soap doesn’t actually kill viruses and germs, but they do help massively in washing them ofg your hands ● When you get home, the first thing you should do is wash your hands to prevent spreading the virus to your household objects
AN INSTRUCTIONAL VIDEO ON WASHING YOUR HANDS PROPERLY:
PERSONAL HYGIENE TIPS! USE ALCOHOL HAND RUBS If you are outside, and can’t access soap or a sink: Use an alcohol-based hand rub ● Rub your hands like you would wash your hands with soap ● Make sure the alcohol rubs you use contain at least 60% ● alcohol, otherwise they can’t kill all the viruses But remember, alcohol is FLAMMABLE, so make sure to stay ● away from any fire, accidents have happened before
PERSONAL HYGIENE TIPS! CLOSE THE TOILET LID WHEN FLUSHING Flushing the toilet can cause 80,000 droplets of water to stay suspended a metre in the air for an hour The toilets could potentially be contaminated with the virus ● or other germs, especially public toilets When flushing, water droplets could stick to your clothes, ● and you could spread the virus unknowingly Make sure to close the lid before flushing to avoid this ●
PERSONAL HYGIENE TIPS! MAINTAINING DISTANCE When someone sneezes or coughs, small droplets of liquid may be sprayed out, which may contain the virus. Large droplets can travel up to 2 metres , small droplets can ● even travel up to 8 metres When out and about, try to maintain a distance between ● yourself and others. Some cases of the virus are asymptomatic, so even if a ● person looks healthy, they may already carry the virus
A QUICK VIDEO SUMMARY OF THE LAST SLIDE:
PERSONAL HYGIENE TIPS! DISINFECTING AND CLEANING If you have been to a crowded area or to places that may have a risk of contracting the virus: Make sure to disinfect your items upon returning home ● using alcoholic wet wipes, including jewellery, phones, watches and glasses. Take ofg your shoes before entering your house and you can ● spray the bottom of your shoes with diluted bleach (1:99) Wash your clothes with bleach and you can take a shower ● to avoid spreading the virus
ANOTHER GOOD VIDEO ON HOW TO PROTECT YOURSELF AGAINST THE CORONAVIRUS
FOR MORE INFORMATION VISIT THE WHO (WORLD HEALTH ORGANISATION) WEBPAGE ON THE CORONAVIRUS: OR CLICK HERE SCAN THE QR CODE
ALCOHOLIC HAND SANITISERS Alcoholic hand rubs are in shortage at the moment, even if you cannot make your own hand sanitiser, knowing how they are made may come in handy for your own knowledge. CHEMICALS/REAGENTS USED: - Ethanol (96%) or Isopropyl Alcohol (99.8%) - Hydrogen Peroxide (3%) - Glycerol (98%) - Sterile water (boiled and allowed to cool, or distilled)
All the chemicals are mixed in such a way that the final alcohol rub solution has at least 60% alcohol in them. Remember, only hand sanitisers that have over 60% alcohol in them can kill the virus! If you are keen to learn the exact process click here for the exact World Health Organisation Guidelines DO NOT TRY TO MAKE YOUR OWN HAND SANITISER AT HOME WITHOUT UNDERSTANDING THE SAFETY PRECAUTIONS AND DANGERS OF THE PROCEDURE. SOME OF THE CHEMICALS INVOLVED ARE FLAMMABLE AND POTENTIALLY BE DANGEROUS!
IMPORTANT NOTE IF YOU DO HAVE ALCOHOLIC HAND RUBS AVAILABLE, DON’T ONLY RELY ON IT, MAKE SURE TO KEEP WASHING YOUR HANDS AS THEY SHOULD BE USED TOGETHER TO MINIMISE THE CHANCES OF CONTRACTING THE VIRUS!
AN INTERVIEW WITH PROF. Samuel Yu, Director of the Health, Safety and Environment Office (HSEO) of HKUST. Click the icon to play the audio! If you can’t play it, click here
HERE ARE SOME QUIZZES TO TEST YOUR KNOWLEDGE!
A WORD SEARCH WITH SOME OF THE WORDS MENTIONED IN THIS PRESENTATION
CLICK TO REVEAL THE ANSWERS:
For those who have a Kahoot account, here’s a Kahoot to test your knowledge on personal hygiene and the coronavirus: Click the image to play with your friends! If you don’t have a Kahoot account, the quiz will be on the following slides
What is the official name of the coronavirus? idk SARS-CoV-2 Covid virus CoV-SARS-2
What is the official name of the coronavirus? SARS-CoV-2
What is the difference between a bacteria and a virus? Viruses can be good or bad, while bacteria are Bacteria are from Earth, but viruses are from space almost always bad Viruses need a host organism to survive, but Viruses are larger than bacteria bacteria don't
What is the difference between a bacteria and a virus? Viruses need a host organism to survive, but bacteria don't
Diarrhea can be a symptom of the covid-19 virus True False
Diarrhea can be a symptom of the covid-19 virus True
Pick one or more ways the virus can spread from person to person By touching someone who is infected By hearing a person who is infected on the phone By looking at someone who is infected By sneezing and coughing publicly
Pick one or more ways the virus can spread from person to person By touching someone who is infected By sneezing and coughing publicly
You should see a doctor if you start to show any symptoms I'm young and Of course, yes, healthy, I'll be definitely, fine absolutely
You should see a doctor if you start to show any symptoms Of course, yes, definitely, absolutely
How many layers does an effective commercial face mask have? 2 3.1415926535897932384626433 83279 4 3
How many layers does an effective commercial face mask have? 3
What should you always do immediately when returning home? Wash your hands Watch TV Touch everything in your home Hug your family
What should you always do immediately when returning home? Wash your hands
Alcoholic hand rubs need to be a contain a certain percentage plus of alcohol to be effective. What percentage is it? 30% 70% 60% 99%
Alcoholic hand rubs need to be a contain a certain percentage plus of alcohol to be effective. What percentage is it? 60%
What should you do when you flush the toilet? No need to flush at all Lower the lid before flushing the toilet Flush with the lid open
What should you do when you flush the toilet? Lower the lid before flushing the toilet
You should not clean all your personal belongings you have taken out with you when returning home. True False
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