News & Your Opinion Halo Sat ,02 2525 6 hours ago Last Updated : 02:00 PM 43 US states have 'high' or 'very high' flu activity, CDC data shows As flu activity remains high across the country, here's a look at the flu season so far. HALO NEWSLETTER Keep reading HALO with a Free Subscription unlock this story instantly and join members and pros reading HALO daily -It's Free SIGN UP LOGIN