News NBC News NOW Nightly News Meet the Press Dateline MSNBC TODAY Coronavirus Decision 2020 Politics OPINION U.S. News Business World Sports Share this  — Search U.S. News Politics World Local Business Health Investigations Culture Matters Science Sports Tech & Media Decision 2020 In Focus Photos Weather Shopping Today MSNBC Nightly News Meet The Press Dateline NBC NEWS NOW THINK BETTER NIGHTLY FILMS NBC LEFT FIELD ASIAN AMERICA NBC LATINO NBCBLK NBC OUT STAY TUNED SPECIAL FEATURES NEWSLETTERS PODCASTS CNBC NBC.COM NBC LEARN Peacock Productions Next Steps for Vets Parent Toolkit NBC Archives Know Your Value COUPONS Search Facebook Twitter Email SMS Print Whatsapp Reddit Pocket Flipboard Pinterest Linkedin Coronavirus "We just could not generate much interest," a researcher said of the difficulty in getting funding to test the vaccine in humans. Dr. Peter Hotez, co-director of the Texas...