The UN's health agency declared the end of the most
recent outbreak of Ebola virus disease in Liberia, announcing that all known
chains of transmission have been stopped in West Africa, but the job is not yet
over.
The World Health Organization (WHO) underlined that
strong surveillance and response systems will be critical in the months to come
to prevent additional cases. Since March 2014, the Ebola epidemic has claimed
the lives of more than 11,300 people and infected over 28,500.
Liberia was first declared free of Ebola transmission
last May, but the virus was re-introduced twice since then, with the latest
flare-up in November. Today's announcement comes 42 days--two 21-day incubation
cycles of the virus--after the last confirmed patient in Liberia tested
negative for the disease twice.
This marks the first time
since the start of the epidemic two years ago that all three of the hardest-hit
countries--Guinea, Liberia and Sierra Leone--have reported zero cases for at
least 42 days. Sierra Leone was declared free of Ebola transmission last 7
November and Guinea on 29 December.
"Detecting and breaking
every chain of transmission has been a monumental achievement," said Dr
Margaret Chan, WHO Director-General. "So much was needed and so much was
accomplished by national authorities, heroic health workers, civil society, local
and international organizations and generous partners. But our work is not done
and vigilance is necessary to prevent new outbreaks."
"We are now at a critical period in the Ebola
epidemic as we move from managing cases and patients to managing the residual
risk of new infections," said Dr Bruce Aylward, WHO's Special
Representative for the Ebola Response.
"The risk of re-introduction of infection is
diminishing as the virus gradually clears from the survivor population, but we
still anticipate more flare-ups and must be prepared for them," he added.
"A massive effort is underway to ensure robust prevention, surveillance
and response capacity across all three countries by the end of March."
WHO and partners report they
are working with the Governments of the West African countries to help ensure
that survivors have access to medical and psychosocial care and screening, as
well as counselling and education to help them reintegrate into family and
community life, reduce stigma and minimize the risk of Ebola virus
transmission.
UN News:
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