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Statement by WHO Director-General, Dr Margaret
Chan 29 April 2009
Swine influenza
Ladies and gentlemen,
Based on assessment of all available information, and
following several expert consultations, I have decided to raise the
current level of influenza pandemic alert from phase 4 to phase 5.
Influenza pandemics must be taken seriously precisely
because of their capacity to spread rapidly to every country in the
world.
On the positive side, the world is better prepared for an
influenza pandemic than at any time in history.
Preparedness measures undertaken because of the threat from
H5N1 avian influenza were an investment, and we are now benefitting
from this investment.
For the first time in history, we can track the evolution
of a pandemic in real-time.
I thank countries who are making the results of their
investigations publicly available. This helps us understand the
disease.
I am impressed by the work being done by affected countries
as they deal with the current outbreaks.
I also want to thank the governments of the USA and Canada
for their support to WHO, and to Mexico.
Let me remind you. New diseases are, by definition, poorly
understood. Influenza viruses are notorious for their rapid mutation
and unpredictable behaviour.
WHO and health authorities in affected countries will not
have all the answers immediately, but we will get them.
WHO will be tracking the pandemic at the epidemiological,
clinical, and virological levels.
The results of these ongoing assessments will be issued as
public health advice, and made publicly available.
All countries should immediately activate their pandemic
preparedness plans. Countries should remain on high alert for
unusual outbreaks of influenza-like illness and severe pneumonia.
At this stage, effective and essential measures include
heightened surveillance, early detection and treatment of cases, and
infection control in all health facilities.
This change to a higher phase of alert is a signal to
governments, to ministries of health and other ministries, to the
pharmaceutical industry and the business community that certain
actions should now be undertaken with increased urgency, and at an
accelerated pace.
I have reached out to donor countries, to UNITAID, to the
GAVI Alliance, the World Bank and others to mobilize
resources.
I have reached out to companies manufacturing antiviral
drugs to assess capacity and all options for ramping up production.
I have also reached out to influenza vaccine manufacturers
that can contribute to the production of a pandemic vaccine.
The biggest question, right now, is this: how severe will
the pandemic be, especially now at the start?
It is possible that the full clinical spectrum of this
disease goes from mild illness to severe disease. We need to
continue to monitor the evolution of the situation to get the
specific information and data we need to answer this
question.
From past experience, we also know that influenza may cause
mild disease in affluent countries, but more severe disease, with
higher mortality, in developing countries.
No matter what the situation is, the international
community should treat this as a window of opportunity to ramp up
preparedness and response.
Above all, this is an opportunity for global solidarity as
we look for responses and solutions that benefit all countries, all
of humanity. After all, it really is all of humanity that is under
threat during a pandemic.
As I have said, we do not have all the answers right now,
but we will get them.
Thank you.
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