BBC: The medicine of coronavirus-2

Dr. Daszak believed that some form of SARS remained in bats and based his investigations on this hypothesis- an idea which is suggested as a possiblel explanation of something but which has not yet been proved correct. 

Another scientist working to prevent new epidemic is the pathologist Professor Mary Fowkes. 

The original SRS was treated as a respiratory disease which attacks the lungs. 

But when working with infected patients, Professor Fowkes noticed that Covid-19 was damaged the brain, blood and other organs as well. 

Clinicians have recognized that a lot of patients that have Covid-19 are exhibiting confusion, are not necessarily aware of their environment appropriately, some are having seizures, so there are some central nervous system abnormalities, And as you knowk, a lot of patients  are exhibiting loss of sens of smell and that is a direct connection to the brain as well. 

In some infected patients, coronavirus attacks the central nervous system- the body's main system of nerve control consisting of the brain and spinal cord. 

When severe, this can cause seizures- sudden, violent attack of an illness, often affecting the heart or brain. 

It seems that Covid-19 type disease are not going to disappear any time soon. 

Reminding us of the importance of the scientific reasearch we've heard about today.

And the importance of boosting your immunity... which reminds me of today's quiz question.

You asked me how many white blood cells per milliliter the human body has. I said c) 70,000.

Well, if that's true you've definitely boosted your immunity, Georgina, because the correct answer is c) 7,000.

Today we've been discussing the strains- or slight variations, of the virus which causes Covid-19.

Covid-19  has a previous disease called SARS as its precursor- a situation which existed before something and caused the development of that thing. 

Researchers used the idea that the virus have passed to humans from bats as their hypothesis- possible explanation for something which has not yet been proved true. 

By identifying new virus strains, doctors hope unexplained cases can act as a red flag- a warning sign of danger, to prevent further outbreaks. 

Knowing about new strains is increasingly important as we find out more about how coronavirus attacks the body's  central nervous system- the brain ans spinal cord, which in some patients can cause siezures- sudden, violent attacks of an illness, especially affecting the heart or brain. (strain: 물체가 외력의 작용을 받았을 때 생기는 형태, 부피의 변화)

So try to stay safe, wash your hands and remember to join us again soon. Bye for now!