Top infectious disease expert Anthony S. Fauci on June 22 warned that the delta coronavirus variant was more transmissible and associated with "increased disease severity." Read more: https://wapo.st/3cZrG4f. Subscribe to The Washington Post on YouTube: https://wapo.st/2QOdcqK Follow us: Twitter: / washingtonpost Instagram: / washingtonpost Facebook: / washingtonpost