Health-care companies rose slightly as investors hedged their bets on the likelihood of an effective Covid-19 treatment emerging from the sector in the short term. Gilead Sciences is expanding its manufacturing network to ramp up production of Covid-19 treatment remdesivir, and said it will be able to meet global demand in real time starting in October after a multiyear deal with Big Pharma company Pfizer. The Bill & Melinda Gates Foundation said it's backing the world's largest vaccine maker, Serum Institute of India, to churn out 100 million doses of coronavirus vaccine for poorer countries and price them at less than $3, reflecting concerns about the possibility of a bidding war between wealthy countries shutting out poorer from vaccine supplies.
Write to Rob Curran at rob.curran@dowjones.com
