Next, I will briefly explain how to prevent from catching COVID
The most important thing is the mask
(#Prevention - Mask) I recommend KF94 or higher
(A mask that can filter KF94 or higher and 0.4 micrometer or less is recommended) In other words, we recommend a mask that can filter less than 0.4 microns
It's a problem when you take it off
(It is also important to how to take off the mask) Because we wear a mask and inhale
(You have to hold the string on your ears and throw it in the trash after removing it) There must be a virus on the surface
So when you take it off, you shouldn't take it off like this
When taking off, remove the straps from your ears first, then hold only the straps and throw them in the trash
(Be careful of sealing the outer surface of the mask) And now if you put on a mask
(Be careful of sealing the outer surface of the mask) You all have used it, right?
When you inhale after wearing it, can you feel the air seeping in like this, especially around the nose, cheeks, or chin, correct?
The aerosol is 0.6 micrometers in size, so you can't see it
If this is leaking, wearing a mask doesn't help you, right?
So, always pay attention to sealing when wearing a mask, especially around the nose
(#Prevention - Washing Hands) Next, hand washing is important
All of you are good at washing your hands, but from what you see in this picture, you are not good at 6, 7, 8, and 9
When you wash your hands, you are now doing well with the palms, the back of your hands, and between your hands
But there is something we miss out on
(Parts often missed in hand washing - fingertips, between fingernails, thumbs, wrists) It's the tip of the hand, between the fingernails, then the thumb and wrist
In order to clean your fingertips well, you have to rub them well in a shape like this
Then you must wash your thumbs separately
Many people miss this part a lot
After that, you should try to remove the virus caught between your nails by rubbing your nails well with your palms
And by wiping the wrist separately, it is safe to wipe the virus from this wrist to the forearm as well
(#Prevention - Disinfect Surroundings) Next, you need to disinfect the surroundings well
(Keep Things Clean) In the case of an aerosol, it was said that they float for 16 hours
That's why it's important to always keep the things around you clean regardless of the distance
(Lack of vitamin D can cause severe lung symptoms) There are also reports of severe lung symptoms in the case of vitamin D deficiency
Vitamin D, so vitamin intake is also important
(#Prevention - Air Purifier) When using an air purifier, it can filter up to 0.3 micrometers
(HEPA filter level filter is used) It would be nice to be able to use a HEPA filter level filter
(Ventilation reduces the density of the coronavirus) By ventilation, the coronavirus itself
It would also be important to reduce the density
(#Prevention - Eat Cooked Food) Eating cooked food is also important
For example, when we eat, especially outside
(There is a risk of contamination of coronavirus during serving or cooking) While serving or preparing food
Since contamination with this coronavirus is quite possible
(Recommended to eat hot food) It is better to eat food that is a little hot at the moment we eat
Because the virus is easily killed by high heat
I think it is safer to eat hot food than raw or lukewarm food
(#Prevention - Pay Attention to the Bathroom Environment) The bathroom is also important
If you flush the toilet
(Aerosol is generated over the toilet) You can't see it, but a lot of aerosol is generated over the toilet
The top of the toilet is full of aerosol, which eventually fills the entire toilet
(Virus occurs in feces of patients with COVID-19) More than half of COVID-19 patients have the virus in their feces
To put it simply, when a COVID-19 patient flushes the toilet, aerosols are generated
It can spread throughout the bathroom mixed with the virus
(Wear a mask even in the bathroom) You should wear a mask well in the bathroom and pay attention to hand hygiene
(#Prevention - Vaccine) Finally, a vaccine
Vaccines are being distributed now
(In the future, mutations such as the South African variant will continue) Variants like the South African variant will continue to appear in the future
Coronaviruses are characteristically mutable
The vaccine, which is currently available, is known to cover the strains from South Africa
But it's just a little weaker
(3rd dose may be required) So, this vaccine is currently being planned as a second vaccination
But it is highly likely that the third vaccination will be given
And based on the age of 55 years old, immunity to antibodies is expected to be maintained for about 6 months, between 6 months and 1 year
(Expect annual vaccination) Therefore, it is expected that you will need to get a vaccine against coronavirus every year
(#Isolation Release CDC Guidelines - Mild/Moderate Patients) Finally, we will explain when you can be released from quarantine after getting sick with COVID-19
Mild or moderate patients, those who doesn't need to go to the hospital
(10 to 20 days or more after symptom onset, no fever for more than 24 hours, improvement of existing symptoms) 10 to 20 days or more have passed since the onset of symptoms
10 days or 20 days, the difference is now for the doctor to decide
If there is no fever at all without taking antipyretics for 24 hours
You can be released from isolation if your existing symptoms improve
(#Isolation Release CDC Guidelines - Immunocompromised Patients, Critical Care Patients) On the other hand, in immunosuppressed or critically ill patients
(Requires PCR test) The PCR test is called a heavy pressure enzyme chain reaction test
To put it simply, you can only be released from quarantine if you have a negative result in the gene amplification audit
If you summarize this immunocompromised patient, critically ill patient
(Age 55 or older, diabetic, dialysis patient, AIDS, chemotherapy) Patients over the age of 55, and those with diabetes or undergoing dialysis
(Admission to intensive care unit, administration of steroids for more than 14 days) AIDS patients or those who have undergone chemotherapy
And those who were hospitalized in an intensive care unit or who received steroid treatment for more than 14 days are defined as immunocompromised patients or critically ill patients
(#Isolation Release CDC Guidance - Reasons for this Difference) To explain the reason for this difference
(Although a healthy person can be PCR positive for up to 3 months) Once a healthy person has been reported
(The infectivity is very low, so there is no evidence that it has infected others.) There have been cases where the PCR test was positive for up to 3 months
But in healthy people, if it's been more than 20 days, even if the virus comes out, the virus has very low infectivity
There is no evidence that this virus could infect anyone else
There is no evidence, there is no case, and that's why quarantine can be released
(Even if symptoms disappear in immunocompromised patients) The reason why PCR testing necessary in immunocompromised patients is
(Infectious viruses may be alive) Even if the symptoms disappear completely in these people
Viruses from these people are still considered infectious, so PCR testing is essential
The COVID-19 pandemic is almost over
Vaccine is out, and it's expect to be calm down soon
I pray that you have a safe trip during the remaining time
Thank you