WHO Raises Pandemic Alert Level to Phase 5
Adjust font size:
As the swine flu situation continues to get worse, the World Health Organization (WHO) on Wednesday raised the pandemic alert level to Phase 5, indicating that a full pandemic is imminent.
|
|
|
People sit in the waiting room at the Mexico City Navy Hospital to be checked for flu-like symptoms on April 29, 2009 in Mexico City, Mexico. Cases of swine flu, the strain known as H1N1 virus, have been confirmed in nine countries, including Mexico, where at least 2,400 are believed to be infected, with the number of deaths attributed to the virus believed to be more than 150. The World Health Organization today raised the threat level to "phase 5," indicating a "pandemic is imminent." [Joe Raedle/Getty Images/CFP] |
"I have decided to raise the level of influenza pandemic alert from Phase 4 to Phase 5," announced WHO Director-General Margaret Chan at a teleconference for the media late Wednesday, following close consultations with international experts.
"Influenza pandemics must be taken seriously precisely because of their capacity to spread rapidly to every country in the world," Chan said.
"Phase 5 is characterized by human-to-human spread of the virus into at least two countries in one region. While most countries will not be affected at this stage, the declaration of Phase 5 is a strong signal that a pandemic is imminent and that the time to finalize the organization, communication, and implementation of the planned mitigation measures is short," according to a WHO explanation to its six-phase pandemic alert system.
This was the second raise of the WHO's pandemic alert system in three days, indicating the quick worsening of the global swine flu situation. On Monday, the agency raised its alert level from Phase 3 to Phase 4.
"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," Chan said in a statement.
"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," she added.
At this stage, effective and essential measures governments can take include heightened surveillance, early detection and treatment of cases, and infection control in all health facilities, according to the WHO chief.
Chan said the world today was actually better prepared for an influenza pandemic than at any time in history, due to preparedness measures already undertaken because of the threat from H5N1 avian influenza.
But she warned that "influenza viruses are notorious for their rapid mutation and unpredictable behavior."
"The biggest question, right now, is this: how severe will the pandemic be, especially now at the start?" she said.
"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," she added.
(Xinhua News Agency April 30, 2009)