The Lancet medical journal reports Russia's Sputnik-V vaccine is found to produce antibodies in patients taking part in early trials, but also warns that wider testing, particularly on older populations is needed for safety reasons.
The Pope is preparing to travel to Assisi but he won't meet with crowds. Mexico is printing a million new death certificates due to parts of the country being hit so hard by the pandemic they have run out.
Just over 100 years ago, an influenza infected a third of the world's population - but within just three years, the threat of this deadly flu had all but passed. So what changed - and how will the pandemic we're currently living through change?
If we know who is susceptible to dying with COVID-19 because of pre-existing conditions, public health responses could more effectively target and protect potentially vulnerable people and communities, writes Marc Trabsky and Courtney Hempton.