Work led by Megan O'Driscoll, from the Salje group, was published in Nature on 02 November 2020 highlighting the age-specific mortality and immunity patterns of SARS-CoV-2.
Among a range of results, it shows that infection fatality rates are very consistent across ages for those <65y across countries but very different in older individuals, highlighting excess nursing home deaths in European countries and (likely) many missing deaths in South America. It also shows that up to 60% of some South American countries have been infected by now. There also remain unexplained differences in infection fatality between countries that cannot be explained through population demographics alone - suggesting the health of populations is different.
You can read the full published paper here.
A press release from the University of Cambridge can be found here.