When a major change occurs, most people will have little of no immunity to the new virus. Unlike the regular flu, one of these new "pandemic" viruses can show up at any time of the year, and we probably won't have a vaccine for it - at least not right away. Antiviral drugs may or may not work, and they may be in short supply. The resulting wave of illness can spread rapidly across the globe, making millions of people ill. To learn more about pandemic flu visit MN Dept. of Health
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