Risk that Zika will spread further in U.S., elsewhere: WHO

Fri Sep 2, 2016 10:54am EDT
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By Stephanie Nebehay

GENEVA (Reuters) - Singapore has handled its Zika outbreak in a textbook fashion so far, while the United States could see the disease spread beyond Florida despite mosquito-control measures, officials at the World Health Organization said on Friday.

Speaking after a meeting of the WHO's emergency committee on Zika, its chairman David Heymann said the disease continued to constitute an international health emergency although the risk to people attending the Paralympics in Rio de Janeiro this month was low.

"This extraordinary event is rapidly becoming, unfortunately, an ordinary event. And Zika is beginning to spread, continuing to cause outbreaks in many countries around the world," Heymann told a news conference.

Singapore, with a "very technologically advanced health system", was able to identify the disease "very early", Heymann said. "But in other countries where it might enter at some time, that might not be the case."

Peter Salama, head of disease emergencies and outbreaks at the WHO, said the virus was likely to keep spreading.

Florida officials on Thursday said they have trapped the first mosquitoes that tested positive for the Zika virus in the Miami area, further confirming reports of local U.S. transmission of the illness. There have been 49 cases of Zika in people believed to have contracted the virus in a small area of Miami

Salama, asked about Florida and the risk of spread elsewhere in the United States, said: "In terms of further spread, yes, a risk. As we said, the U.S. is no exception. Wherever there is a competent vector, in this case the Aedes aegypti (mosquito), there is a risk that the virus will spread."

Zika infections in pregnant women have been shown to cause microcephaly - a severe birth defect in which the head and brain are undersized - as well as other brain abnormalities. Brazil has confirmed more than 1,800 cases of microcephaly in the past year.   Continued...

A vector control team vehicle displays a sign warning of West Nile Virus before the early morning spraying of a neighborhood due to increasing numbers of mosquitoes having tested positive for West Nile virus in San Diego, California, U.S. May 18, 2016.  REUTERS/Mike Blake/File Photo