After countries united to fight the virus, vaccines threaten to drive a wedge between them

“No one is safe until everyone is safe.” In that one pithy sentence, the World Health Organization (WHO) captures the urgency and the monumental task of dealing with the pandemic. It is a call to action — to band the multiple stakeholders, including international health agencies, scientists, and civil society, into one unit and crank up the innovation engine to fight the virus. As of now, hope rests on a handful of vaccines being developed.