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Moderna is asking American regulators to allow emergency use of its COVID-19 vaccine. It says its final results show the vaccine is 94% effective.The drug maker says it had 196 COVID-19 cases so far in its study. It says 185 of those participants received the placebo, while 11 got the real vaccine. The 30 people who became seriously ill in the trial didn't get the vaccine.FDA advisors are expected to look at all the evidence on December 17. They'll be checking out Pfizer’s vaccine on December 10.Pfizer and Moderna's success with their COVID-19 trials could impact how vaccines are made in the future.It has to do with how they work. They use what's called messenger RNA (mRNA) technology. The virus' genetic code is injected into the body so it can instruct cells on what antibodies to produce.It hasn't been approved to be used in a commercial vaccine before.“In the future, it's clearly going to be tough to beat RNA vaccines for speed and that's a wonderful thing. Just this demonstration of how incredibly fast they can move has been great. How effective they can be, I think will depend on a particular disease,” said Shane Crotty, Ph.D. with the La Jolla Institute for Immunology.Crotty says the narrowest application for this vaccine technology in the future is a similar situation where there's a new emerging virus."The mRNA vaccine has been tried for other infectious diseases and they have been investigated for cancer. There's a whole area of trying to vaccine against cancer, which has kind of been an elusive target,” said Dr. Alessandro Sette with the La Jolla Institute for Immunology.A big question with an mRNA vaccine is how long its protection will last. While there is encouraging findings, there's no historical comparison to look at.A big thing experts say has helped with a vaccine is there has been a lot of money put towards manufacturing before we even knew it would work.Click here to learn more about mRNA vaccines. 1958

MT. JULIET, Tenn. — Officials in a Tennessee county have asked the public to check their Halloween candy after a needle was found in one item. The Wilson County Sheriff’s Office said a report was filed Wednesday night in Mt. Juliet, Tennessee after a needle was found in a piece of LifeSavers Gummies candy. 330

Nearly 2 million people call Nashville and its surrounding communities home, and now only one clinic in the region is available for women to get abortions.That's after Nashville's only other clinic, “The Women's Center,” abruptly shut its doors over the weekend. 275

NASA has tapped nine astronauts to become the first to launch to space from American soil since the Space Shuttle program was retired in 2011.The seven men and two women will also be the first astronauts to fly in capsules developed and built by the private sector as part of NASA's Commercial Crew Program.Since 2011, the United States has relied on Russia to ferry astronauts to the space station. SpaceX and Boeing were picked by NASA in 2014 to develop spacecrafts to return that capability to the United States, and both companies are slated to launch their first crewed missions in the next year. Some, however, deem that target ambitious.During an announcement Friday to introduce the astronauts at Johnson Space Center in Texas, NASA administrator Jim Bridenstine said the "health of NASA and our space exploration program is as strong as it's ever been."All nine astronauts have military experience, and most are seasoned veterans of space. 957

Nashville kindergarteners expressed their gratitude to James Shaw, the hero of the Waffle House shooting, for his bravery.The counselor at Glenn Elementary asked students to make cards after they asked what happened in the incident. They also made cards, saying they were sorry for the victims' loved ones.Four people were killed early Sunday morning when a gunman opened fire at a Waffle House in Antioch, Tennessee.The suspected gunman, Travis Reinking, was taken into custody Monday afternoon.  510