Deadly and destructive wildfires erupt in the US each year, burning millions of acres and destroying thousands of homes. CNN is tracking the trends.

Wildfires in Canada, the United States and Mexico often send smoke throughout the continent. Follow our latest coverage here.

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Norovirus is the leading cause of acute gastroenteritis in the United ...