Joe Ondrak is a senior researcher at Logically, investigating disinformation. Read Nicola Davis’s article on how Covid vaccines have been developed so quickly. Let us know what you think of the episode, and any stories you’d like us to cover in the future, by leaving a comment below or sending us an email at: scienceweekly@theguardian.com. If you have a question about the Covid outbreak you’d like us to investigate, fill in this form.