social distancing lockdowns math testing
and herd immunity in this video we're
going to look at each of those responses
to coronavirus and see what's happened
when they've been used
Kovach 19 has brought countries to a
standstill and they've all responded in
different ways we saw a locked-down in
Wuhan in China now countless others have
done the same Italy Spain France cities
like here in London have called on
people to socially distance and work
from home which is why I'm talking to
you from my bedroom now why are
government's taking these measures the
main thing is flattening the curve what
we need to do is flatten their down
nation the curve flattening why do you
want to flatten the curve that's the
idea that in fighting this pandemic we
need to slow the rate of infections to
give hospitals the chance to deal with
patients without being overwhelmed as
well as giving us more time to find
remedies and vaccines now while everyone
agrees from the need to flatten the
curve how we get there has been up to
debate so let's take a look now what are
the earliest methods to implement is
social distancing now a virus like coded
19 can be spread when people with it
have close sustained contact with others
who do not yet have it so social
distancing is about trying to stop the
chances of that happening so that's not
just hanging out with people with the
virus it's cutting down on all
non-essential social interactions as
well as not using public transport when
possible and working from home like me
right now it's also about avoiding large
and small gatherings Germany recently
said there should be no gatherings of
more than two people that's why in
places like here in London clubs
restaurants pubs leisure centres have
all been closed social distancing is
implemented once public health officials
recognize that the disease is going to
spread it is here it's going to spread
but there are actions that we can take
in order to reduce the rate at which it
spreads social distancing is a
tried-and-true Public Health
intervention given that social
distancing is an agreed-upon method to
helping stem the spread that's why some
experts criticize countries like the UK
for not calling for social distancing
earlier the UK's chief science officer
said that it wanted to time things
correctly and there was a danger in
moving too quickly
so the timing is critical and that's
true across all of the interventions
we've looked at that's why this is a
package of things that need to happen at
the right time and in the right
placing however the UK government
switched at the path a few days later as
new modeling showed that drastic
suppression measures like social
distancing would cut deaths to tens of
thousands rather than hundreds of
thousands for that to happen the
modeling said all households needed to
reduce contact outside the house school
or workplace by 75% but there's still a
lot of criticism that social distancing
is not being a dear to look at Bondi
Beach in Sydney after Australians were
told to social distance it was still
packed the beach did eventually closed
after scenes like these if the community
does not comply well then this is going
to become the new norm so what happens
when you make this type of thing
mandatory rather than advisory one step
further than social distancing is
locking down an entire city or even
country that's what we first saw in
Wuhan on January the 23rd where the
corona virus was first recorded trying
to put people in the region of who Bay
home to nearly sixty million people
under strict quarantine and travel was
restricted the whu-oh said it was a move
unprecedented in public history what
does that mean well in Wuhan all public
transport including buses railways
flights the ferry services were
suspended and residents were not allowed
to leave the city without permission in
Italy we saw the same thing with 60
million people told to stay at home
where possible residents can only go
outside due to an urgent need like
buying necessities and are expected to
carry a form justifying their reason for
travel they face a fine if not France
also did the same on March the 16th
issuing a strict 15-day lonna
and the UK after a week of asking people
to socially distance enforce their
measures with a three week lockdown if
you don't follow the rules
the police will have the
to enforce them including through fines
and dispersing gatherings now given lots
of countries are doing this it seems
this is an agreed-upon way to tackle the
spread of the virus however there are
issues firstly Italy saw Rises and
deaths and cases after the lockdown so
that raises the question of how
effective it is some commentators point
out that Italy court enforce is locked
down in the same way as that an
authoritarian regime like China can with
a number of cases from inside the
country dramatically reduced over the
weeks yet Bruce Aylward
of the WH Oaks said that China's stem
the virus is spread by rapidly testing
people placing those confirmed or
suspected to have it in immediate
isolation and then quarantine in those
who had close contact with that person
for 14 days population knew what it was
looking for and they knew what this
disease was they knew where to go to get
tested and they could be isolated and
taken care of very very quickly people
were part of this solution they were the
surveillance system and what worries me
always matters everyone starts with like
we can't do a China did and I said well
why not and they said well we can't lock
down a whole city
I said well China didn't either that we
made thousands and thousands of cities
they locked down a few which word have
really gotten out of control and that's
why we come onto ensuring everyone gets
tested the WTO has always held up South
Korea as an example of how to tackle the
spread of the coronavirus a month ago
the Republic of Korea was faced with
accelerating community transmission but
it didn't surrender it's developed an
innovative testing strategy it did
exhaustive contact tracing South Korea
very quickly developed a test and
immediately began testing thousands and
thousands of people they could do 20,000
in a day even testing those who do not
have symptoms using drive-through
centers as well as novel facilities like
this a sort of foam box drop-in outside
a hospital in Seoul that allows anyone
to take tests without coming into
contact with a doctor kinda cool you
didn't turn up our Sakuya was hilarious
all Han Java drove us all senior
abundant
Curren system a maroon van they are
grown man with our canoes and to
superkick Eden in Ramallah Iranian
return tip job table children are given
water so South Korea may testing free
and available to all and quarantine
those who had the virus one infectious
disease expert told science magazine
that South Korea's example showed that
quote contact tracing is also very
influential in epidemic control as is
case of isolation basically what Bruce
Elwood from the Debbie Otto was saying
earlier but countries like South Korea
and China also used apps to monitor the
spread of the virus the ability to know
who has the virus and look at who
they've come into contact with so how do
those apps work here's a little
explanation here subject a has the
corona virus but doesn't yet know it or
show any symptoms in their day-to-day
life if they come into contact with
other people at home on public transport
or even at work when their symptoms
begin to show they can request a test
and if it's positive all the people they
interacted with are immediately notified
by the app and told to self isolate and
get tested themselves the places they
visited are then decontaminated of
course this raises the issue of the
invasion of privacy and us entering a
sort of Big Brother world but is that
worth it when trying to fight this virus
it's about using 25 21st century
technology to implement age-old
principles of Epidemiology to rapidly
instantaneously identify those people at
risk themselves and those people at risk
of passing on the virus to other people
now things like social distancing in
lockdowns are about suppression which
aims to reverse epidemic growth yet
there was a lot of discussion about the
concept of herd immunity after Sir
Patrick balance said this it's not
possible to stop everybody getting it
and it's also actually not desirable
because you want some immunity in the
population we need to have immunity to
protect ourselves from this in the
future he talked about 60% of the
population in the UK some 40 million
people catching the virus to get towards
this herd immunity that herd immunity
concept is the idea that if enough
people become immune to the illness in
this case because there was no vaccine
they can't
the virus and recover the corona buyers
can no longer spread basically the more
people you meet who are resistant to the
infection the less likely the illness
has to infect someone who is susceptible
after a while the virus will not be able
to infect enough people to sustain
itself in a population however that
approach was criticized including from
one of China's main respiratory
specialist forward to the wooden gold
car digger
so either GT GT to see the twenty little
piece of leaf length garden certainly we
still don't know if people who catch the
corona virus will become immune for life
afterwards and it's not clear whether
people can become infected again or
whether the disease will behave like flu
in the future and mutate into new
strains to which people are not immune
and it's worth remembering amidst all
this that people here are changing their
habits to help tackle this virus a new
survey by Imperial showed that more than
half of the population are avoiding
crowded areas and 83% are washing their
hands more frequently we've seen a range
of responses from different countries as
this outbreak has spread China was first
and many have begun to follow their
example with social distancing and
lockdowns yet the message from the WH
own has always been that that by itself
cannot work it needs to be backed up by
testing testing testing to ensure that
we can monitor how the virus is being
spread and stopped those who might not
even know they have it
to stop actually spreading it while
we're in an interconnected world nations
are still choosing their own pathway
when it comes to tackling this virus and
that can cause you some confusion or
mixed messages
as you see some countries take different
measures at different times to your own
let us know how you've been dealing with
the response by your government in your
country in the comments below and make
sure you wash your hands keep your
distance and stay safe
you