Placeholder Image

Subtitles section Play video

  • welcome to another MedCram lecture one of the things that's in the news and

  • hopefully goes away real soon is the corona virus epidemic from 2019 as it

  • turns out it started on the last day of 2019 and has been with us in 2020 let's

  • talk a little bit about corona virus that virus that seems to have come from

  • Wuhan China let's talk a little bit about what's going on and the updates so

  • it seems as though this virus came from as we mentioned Wuhan China they've

  • seemed to have pinpointed this to an animal market in fact a number of the

  • people that were hospitalized and we'll talk about that article in The Lancet

  • came from this animal market and as of January 25th 2020 they estimate about

  • 1300 people have been infected and about 41 people to date as of January 25th

  • have died and of course this number is expected to go up where is it spread to

  • well other than China and Asia this has spread already to Australia France and

  • the United States specifically two cases one in Chicago a woman in Chicago and a

  • man in Washington State and we'll talk more about that we expect that to go up

  • but what really is going on with a corona virus and why is this one so

  • different so we've known about corona viruses for a long time it's an RNA

  • virus so we know that and let's face it there's our there's corona viruses all

  • over the place in humans and they usually cause the common cold what's

  • unusual about this one is that this one seems to have jumped from one that is

  • already in an animal to that being in a human so there's tons of corona viruses

  • that infect animals but what has seemed to have happened here for the first time

  • as this one has jumped into a human that a human hasn't seen before and how could

  • that happen well it could be from a mutation and

  • that's typically what happens is there's a mutation in the protein in this virus

  • that allows it to bind to human proteins and that

  • allows the virus to get inside of the cells of humans and if it can replicate

  • then it can spread throughout that human body and then perhaps spread to another

  • human body so what needs to happen there has to be a mutation and that mutation

  • is already there in the animal and then there has to be close contact with that

  • animal either living with that animal or eating that animal to get that mutated

  • virus that normally lives in an animal into the human being so when that virus

  • then gets into the human being it's got to be able to replicate so that there's

  • more viruses and then it has to be able to spread to another human being and

  • that is what's gonna cause an epidemic so how does that happen well there's got

  • to be replication as we just said and they believe that that virus can

  • replicate inside the human and then how does it spread to another human as

  • opposed to just another animal spreading it to another human well the way that

  • you get an epidemic is with replication occurring inside that person that index

  • infected person and then it spreads how would it spread well it could spread by

  • airborne so that's why you'd want to wear a mask or close contacts so a loved

  • one contaminated surfaces so that's why you'd have to wash your hands very

  • carefully or rarely fecal contamination but these are the things that you can

  • attack to prevent the spread of this virus but we've seen this before and

  • where have we seen this corona virus type of thing happening before well you

  • all may remember SARS back in 2002 this was from bats which is where the virus

  • was infecting a mammal called civets and then they being eaten or living close to

  • humans fortunately we haven't seen any more infections since 2004 but that was

  • a big thing back in 2002 then MERS which have to do with the Middle East have to

  • do with camels viruses that lived in the camel and if you ate the camel or drank

  • the camel's milk you could get this type of infection now

  • the new one is humans with this infection called n Co V which is what

  • they're calling it now so n Co V is the new coronavirus that's coming out of

  • Wuhan China 2019 and that has gone into humans but the question is who did it

  • come from what is the host so what they did was

  • they sequenced this virus in the Journal of medical virology and we'll put a link

  • to this article in our description below so you can see it what they did was they

  • sequenced this RNA and they compared it to 200 other RNA virus coronaviruses

  • that are known to infect animals and the one they came up with which was a match

  • that was pretty close was one in snakes and so what their conclusion was and we

  • don't know that this is in fact true but this was their conclusion was that in

  • the wuhan animal market there must have been a snake that had a mutated corona

  • virus which they're now calling n co v somebody either ate it or was close to

  • it or somehow got contact with it and that virus just started to replicate

  • inside of that person and that person spread it and as we'll see in The Lancet

  • article which will also put a link to in our description below

  • they found a whole family that had this virus that were hospitalized and we'll

  • talk about the symptoms and the mortality and things of that nature here

  • coming up in our second video this is what they think is going on in China

  • with a corona virus and this is big news right now because millions and millions

  • of people are quarantined in China as I'm making this video so in our next

  • video we'll talk about the symptoms and what they're doing for treatment

  • vaccines and what you can do to prevent you getting this corona virus thanks for

  • joining us

  • you

welcome to another MedCram lecture one of the things that's in the news and

Subtitles and vocabulary

Operation of videos Adjust the video here to display the subtitles

B1 human corona virus spread mutation replicate china

Coronavirus Outbreak - Transmission & Updates Explained

  • 6 0
    林宜悉 posted on 2020/02/25
Video vocabulary