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  • 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


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B1 中級 武漢肺炎 新型冠狀病毒 新冠肺炎 COVID-19

冠狀病毒爆發--傳播與更新解讀 (Coronavirus Outbreak - Transmission & Updates Explained)

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