Flu vaccine has reduced the risk of infections in the United States by nearly half this season but the infection is expected to continue for the next many weeks, the Centers for Disease Control & Prevention (CDC) said in its latest report.
The federal agency said that the predominant virus strain this flu season is influenza A...
Flu vaccine is 48% effective this season: CDC
February 17, 2017
Wochit News - ▶ 00:44
KDKA CBS 2 Pittsburgh - ▶ 02:08