As a growing Ebola outbreak in Central Africa raises alarm, listeners have questions about what it is, how it spreads, and how worried they should be. Sanjay breaks down what we know — including why Ebola is highly infectious but not easily contagious — and why this outbreak has experts on alert. Plus, what it could mean for travel and the upcoming World Cup.  This episode was produced by Andrea Kane and Leying Tang Senior Producer: Dan Bloom Technical Director: Dan Dzula Learn more about your ad choices. Visit podcastchoices.com/adchoices