AstraZeneca said its Covid-19 vaccine could be up to 90 percent effective in preventing the disease  a third breakthrough in the fight against the pandemic. Dr. John Torres explains…
An FDA advisory committee voted 17 to 4 to recommend approval of Pfizer’s Covid-19 vaccine. NBC News’ Tom Costello and Dr. John Torres explain what’s next. » Subscribe to NBC…
The first Covid-19 vaccines are here and thousands of health care workers are getting doses already. Yet it will take several months to vaccinate the general population. NBC News Senior…
Golf Channel contributor Ron Sirak tells News Now whether Tiger Woods will be able to bounce back from his recent car accident, and recounts the times Woods competed while injured…