Infectious diseases spreading faster than ever: U.N.

Thu Aug 23, 2007 2:54pm EDT
 
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By Laura MacInnis

GENEVA (Reuters) - Infectious diseases are emerging more quickly and spreading faster around the globe than ever and becoming increasingly difficult to treat, the World Health Organization (WHO) said on Thursday.

With billions of people moving around the planet every year, the U.N. agency said in its annual World Health Report: "An outbreak or epidemic in one part of the world is only a few hours away from becoming an imminent threat somewhere else."

WHO director-general Margaret Chan said mass travel could facilitate the rapid spread of infectious diseases.

"No country can shield itself from invasion by a pathogen incubating in an airline passenger or an insect hiding in a cargo hold," Chan told reporters.

The U.N. agency warned that there was a good possibility of another major scourge like AIDS, SARS or Ebola fever with the potential of killing millions appearing in the coming years.

"Infectious diseases are now spreading geographically much faster than at any time in history," the WHO said.

It said it was vital to keep watch for new threats like the emergence in 2003 of SARS, or Severe Acute Respiratory Syndrome, which spread from China to 30 countries and killed 800 people.

"It would be extremely naive and complacent to assume that there will not be another disease like AIDS, another Ebola, or another SARS, sooner or later," the report warned.

Since the 1970s, the WHO said, new threats have been identified at an "unprecedented rate" of one or more every year, meaning that nearly 40 diseases exist today which were unknown just over a generation ago.

Over the last five years alone, WHO experts had verified more than 1,100 epidemics of different diseases.

It was therefore vital for countries to share information on outbreaks so risks can be assessed and mitigated, Chan said.

MONITORING VITAL

The report called for renewed efforts to monitor, prevent and control epidemic-prone illnesses such as cholera, yellow fever and meningococcal diseases.

International assistance may be required to help health workers in poorer countries identify and contain outbreaks of emerging viral diseases such as Ebola and Marburg hemorrhagic fever, the WHO said.

It warned global efforts to control infectious diseases had been "seriously jeopardized" by widespread drug resistance, a consequence of poor medical treatment and misuse of antibiotics.  Continued...

 
Dr. Qurrath U. Ain of the Elmhurst Pediatric Emergency Center examines a patient with flu-like symptoms at Elmhurst Hospital in New York in this December 12, 2003. file photo. REUTERS/Shannon Stapleton/Files
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