Journalists Harriet Constable and Jacob Kushner will discuss their six-part multimedia series for BBC, “Stopping the Next One,” which explores six diseases that could cause the next global pandemic and the scientists working to keep that from happening. Their stories cover a bat-borne virus in Asia, a super-spreader mosquito that has crossed from India to North America, African camels carrying Middle East Respiratory Syndrome (MERS), swine flu in Europe, monkeys with yellow fever in South America, and possums carrying flesh-eating bacteria in Australia.