-
The child's symptoms begin
-
with mild fever, headache, muscle pains,
-
followed by vomiting and diarrhea,
-
then bleeding from the mouth,
-
nose, and gums.
-
Death follows in the form of organ failure
-
from low blood pressure.
-
Sounds familiar?
-
If you're thinking this is Ebola,
-
actually in this case it's not.
-
It's an extreme form of dengue fever,
-
a mosquito-born disease which also does
not have effective therapy or a vaccine
-
and kills 22,000 people each year.
-
That is actually twice
the number of people
-
that have been killed by Ebola
-
in the nearly four decades
that we've known about it.
-
As for measles, so much
in the news recently,
-
the death toll is actually tenfold higher.
-
Yet for the last year,
-
it has been Ebola that has stolen
all of the headlines and the fear.
-
Clearly, there is something
deeply rooted about it,
-
something which scares us
and fascinates us
-
more than other diseases.
-
But what is it exactly?
-
Well, it's hard to acquire Ebola,
-
but if you do, the risk
of a horrible death is high.
-
Why?
-
Because right now, we don't have any
effective therapy or vaccine available.
-
And so that's the clue.
-
We may have it someday.
-
So we rightfully fear Ebola
-
because it doesn't kill
as many people as other diseases.
-
In fact, it's much less transmissible
than viruses such as flu or measles.
-
We fear Ebola because of the fact
that it kills us and we can't treat it.
-
We fear the certain inevitability
that comes with an Ebola.
-
Ebola has this inevitability
that seems to defy modern medical science.
-
But wait a second, why is that?
-
We've known about Ebola since 1976.
-
We've known what it's capable of.
-
We've had ample opportunity to study it
in the 24 outbreaks that have occurred.
-
And in fact, we've actually had
vaccine candidates available now
-
for more than a decade.
-
Why is that those vaccines are just
going into clinical trials now?
-
This goes to the fundamental problem
we have with vaccine development
-
for infectious diseases.
-
It goes something like this:
-
the people most at risk for these diseases
-
are also the ones least able
to pay for vaccines.
-
This leaves little in the way
of market incentives
-
for manufacturers to develop vaccines
-
unless there's large numbers of people
who are at risk in wealthy countries.
-
It's simply too commercially risky.
-
As for Ebola, there is absolutely
no market at all,
-
so the only reason we have two vaccines
in late stage clinical trials now
-
is actually because
of a somewhat misguided fear.
-
Ebola was relatively ignored
-
until September 11 and the anthrax attacks
-
when all of a sudden,
people perceived Ebola
-
as potentially a bioterrorism weapon.
-
Why is it that the Ebola vaccine
wasn't fully developed at this point?
-
Well partially, because
it was really difficult
-
or thought to be difficult
to weaponize the virus,
-
but mainly because of the financial risk
-
in developing it,
-
and this is really the point.
-
The sad reality is, we develop vaccines
not based upon the risk
-
the pathogen poses to people,
-
but on how economically risky it is
to develop these vaccines.
-
Vaccine development
is expensive and complicated.
-
It can cost hundreds of millions of dollars
to take even a well-known antigen
-
and turn it into a viable vaccine.
-
Fortunately for diseases like Ebola,
-
there are things we can do
to remove some of these barriers.
-
The first is to recognize
when there's a complete market failure.
-
In that case, if we want vaccines,
-
we have to provide incentives
-
or some type of subsidy.
-
We also need to do a better job
-
at being able to figure out which
are the diseases that most threaten us.
-
By creating capabilities within countries,
-
we then create the ability
for those countries to create
-
epidemiologic and laboratory networks
-
which are capable of collecting
and categorizing these pathogens.
-
The data from that then can be used
-
to understand the geographic
and genetic diversity,
-
which then can be used
to help us understand
-
how these are being changed
immunologically
-
and what type of reactions they promote.
-
So these are the things that can be done,
-
but to do this, if we want to deal
with a complete market failure,
-
we have to change the way we view
and prevent infectious diseases.
-
We have to stop waiting
until we see evidence
-
of a disease becoming a global threat
-
before we consider it as one.
-
So for Ebola,
-
the paranoid fear of an infectious disease
-
followed by a few cases
transported to wealthy countries
-
led the global community to come together,
-
and with the work
of dedicated vaccine companies,
-
we now have these
-
two Ebola vaccines in efficacy trials
-
in the Ebola countries.
-
(Applause)
-
And a pipeline of vaccines
that are following behind.
-
Every year, we spend billions of dollars
-
keeping a fleet of nuclear submarines
permanently patrolling the oceans
-
to protect us from a threat
-
that almost certainly will never happen,
-
and yet we spend virtually nothing
-
to prevent something as tangible
-
and evolutionary certain
as epidemic infectious diseases.
-
And make no mistake about it,
it's not a question of if but when.
-
These bugs are going to continue to evolve
-
and they're going to threaten the world,
-
and vaccines are our best defense.
-
So if we want to be able to prevent
epidemics like Ebola,
-
we need to take on the risk
of investing in vaccine development
-
and in stockpile creation,
-
and we need to view this then
-
as the ultimate deterrent:
-
something we make sure is available,
-
but at the same time praying
we never have to use it.
-
Thank you.
-
(Applause)