NEW: A Pentagon memo obtained by @TaskandPurpose states that the military should plan on operating without a COVID-19 vaccine until "at least the summer of 2021"
— Jared Keller (@jaredbkeller) May 19, 2020
This contradicts the "by the end of this year" timeline laid out by SecDef Esper on Friday https://t.co/9sxmx63h7x