This week, a study has added to the evidence that specially trained dogs could be used to sniff out people with Covid-19, showing that canines are faster than PCR tests and more accurate than lateral flow tests at detecting infections. Anand Jagatia speaks to the Guardian’s science correspondent Linda Geddes, who went to see the dogs in action Coronavirus – latest updates See all our coronavirus coverage This podcast was amended on 2 June 2021. An earlier version incorrectly referred to insulin being used by people with type 1 diabetes to treat low blood sugar; in fact insulin is given when blood sugar is too high. That reference has been removed.. Help support our independent journalism at <a href="https://www.theguardian.com/sciencepod">theguardian.com/sciencepod</a>
