Iván Barreto Lopez and Marianniz Díaz Hernández spoke to students and staff at the University of Sydney about Cuba's remarkable achievements in spite of the punishing US blockade. Rachel Evans reports.
Immunity, immunisation and immunology
Sweden’s death-rate from COVID-19 has topped the rest of the world on a per capita basis on several occasions since the pandemic started, writes Astrid Paulsson. But Swedish authorities claim the figures are wrong and are standing by their much-criticised “herd immunity” strategy.