flu shot December 18, 2021 2:12 pm This Year's Flu Vaccine May Not Provide As Much Protection According to a new study from researchers at the University of Pennsylvania, the current flu vaccines seem to be a bad match for the dominant strain that is circulating this season. US & World Videos 0:53 Police in New Jersey wrangle runaway “ham-some” pig 1:07 Britney Spears spotted as authorities respond to alleged hotel incident 2:15 Prince William and Kate Middleton ‘going through hell,' friend claims (report) 8:01 Lady Gaga's outfit changes, Rihanna's bold looks and more iconic Met Gala moments 2:48 Taylor Swift fans react to Jake Gyllenhaal and Sabrina Carpenter's ‘SNL' appearance