Business Merck CEO optimistic on Covid vaccines, sees at least 6 more months of social distancing and masks By Soumyadeep Pal - December 11, 2020 0 Share FacebookTwitterPinterestWhatsAppLinkedinReddItTelegramTumblrDiggFlipNaverEmailPrint Covid vaccine: Merck CEO optimistic, sees 6 more months of masks Search quotes, news & videos
