Does catching covid give you more immunity th...

Tim Harford investigates some of the numbers in the news. This week:(00:42) Frustrated economists have been left rending their garments and howling in the streets after the UK’s ‘productivity puzzle’ - a decade-long head-scratching, soul-searching conundrum - disappeared with a c ...  Show more

Are fruit and vegetables less nutritious than they used to be? And is declining soil quality to blame? Loyal listener Sarah got in touch to ask us to investigate an interesting quote from Dr Karan Rajan in a BBC news story. “We know our soil is not as nutrient dense as it was dec ...  Show more

With booster shots on the horizon for some people, one of the biggest questions is: Am I still protected against COVID-19 if I've only had two doses of the vaccine? As science correspondent Michaeleen Doucleff reports, the answer is...complicated.Read more of Michaeleen's reporti ...  Show more

Throughout the pandemic there’s been a big question: Will recovering from the virus or being treated by an effective vaccine provide lasting immunity? CNN Contributor Erin Bromage shares why new studies from the last few weeks make him more hopeful than ever that the answer could ...  Show more

In the race to study immunity to the virus, scientists first focused on antibodies -- proteins that stick to and disable foreign invaders. That’s because creating antibodies is the basis for most successful vaccines, so scientists are interested in learning who develops coronavir ...  Show more

Imprinting is a quirk of the immune system in which someone’s initial exposure to a virus biases their immune response when they meet the same virus again.Studies are showing how imprinting shapes people’s responses to SARS-CoV-2; those infected with earlier strains can mount wea ...  Show more