Nightly News   |  September 05, 2012

West Nile cases continue to climb

West Nile cases in the U.S. continue to climb, jumping 25 percent in a week, with 1,993 cases nationwide and 87 deaths in the country’s worst outbreak for this time of year since the virus was detected here in 1999. NBC’s Brian Williams reports.

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This content comes from Closed Captioning that was broadcast along with this program.

>>> weekend. we got new numbers tonight for what's been a particularly bad year for west nile virus , the mosqui mosquito born illness that can be fatal. just under 2,000 reported, 87 have been fatal. it's a banner year for mosquitoes. the experts say there will probably be new cases right through the month of october.