During the covid-19 pandemic, Anders Tegnell worked as a city epidemiologist and head of department at the Public Health Agency.

Today, he is one of the Public Health Authority's advisers.

He believes that even if you can speculate on what future pandemics will look like, nature will always surprise us.

- Nature is fantastic in that way, it has much greater inventiveness than we can ever get, says Anders Tegnell.

See the entire World of Science: How new pandemics arise on SVT Play