About This Source - NBC News
NBC News is the news division of the American broadcast television network NBC.
NBC News aired the first, regularly scheduled news program in American broadcast television history on February 21, 1940.
Recent from NBC News:
NBC News published this video item, entitled “Nightly News Full Broadcast (May 9th)” – below is their description.
America’s first major holiday with a vaccine, Chinese rocket body lands, and cyberattack forces U.S. energy pipeline to go offline.NBC News YouTube Channel
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In This Story: Vaccine
A vaccine is a biological preparation that provides active acquired immunity to a particular infectious disease. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins, or one of its surface proteins.