It was previously believed that influenza pandemics occurred at 10- to 14-year intervals, nevertheless it has been over 30 years since H3N2 viruses appeared. Viruses had been first isolated in Hong Kong in July 1968. Widespread disease with elevated excess mortality was noticed in the United States through the winter of 1968-1969. If you have any thoughts concerning exactly where and how to use wholesale sialic acid, you can call us at our web-site. Attack charges have been highest (40%) among 10- to 14year-old kids.
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