Coronavirus vaccine

"There will be consequences, always, from these choices," says former WHO chair David Salisbury. "But we try to make them with the best interests of the most people at heart."

Katja Busch says efficient vaccine distribution is most dependent on coordinated efforts between the involved parties.

Most African countries have joined the cooperative effort for global distribution of a future vaccine, but there are still financial and logistical questions.

Needing to store the vaccine at a temperature range outside the norm adds just one more layer of complexity to the logistical challenge.

The Gates Foundation is helping match vaccine developers with manufacturers to help distribute a COVID-19 vaccine equitably.

A bioethics expert weighs in.

That timing is raising eyebrows among some health experts.

Pricing on the open market is opaque, one expert says. Ultimately, the cost is anyone's guess.