text_1: U.S. Rep. Nancy Pelosi's Twitter account deleted a tweet showing her encouraging tourism to Chinatown weeks after President Donald Trump closed the U.S. border to China.
text_2: Merck & Co (MRK.N) said on Friday it expects to make licensed doses of its recently approved Ebola vaccine available in the third quarter of 2020 and price the single-dose injection at the lowest possible access price for poor and middle-income countries.