How long will it take to vaccinate the whole world against COVID-19?

If the virus continues unchecked in some countries 'more sinister' forms of the coronavirus could emerge, Associate Professor Sanjaya Senanayake warns

It could take six years for the world to be vaccinated against COVID-19 at current rates, so vaccines must be shared with developing countries to ensure "more sinister" strains don't emerge, a Canberra infectious diseases specialist warns.

Associate Professor Sanjaya Senanayake.

Associate Professor Sanjaya Senanayake, of the Australian National University's medical school,