NBC News’ Dr. John Torres goes inside a highly-secure lab where scientists are creating this year’s flu shot. Scientists are making a vaccine they hope better protects against four flu strains.Oct. 16, 2018
UP NEXT
Odometer fraud rises as record number of Americans seek used cars
02:37
FAA asks major airlines to slash flights at busy airports due to staffing shortage
01:52
Pope Francis leaves hospital after treatment for bronchitis
01:28
Supporters gather outside of Trump’s Florida golf course ahead of arraignment next week
02:07
Roof collapses at historic Illinois theater, killing 1 and injuring dozens
02:00
Arkansas town devastated after tornadoes battered South and Midwest