Ominy Science

Vaccine trials have had a weird week. What’s not normal is a bunch of researchers in Boston who have decided to test a DIY coronavirus vaccine on themselves. At least 20 people have mixed together the vaccine and sprayed it up their noses as part of what they’re calling the Rapid Deployment Vaccine Collaborative (Radvac)

The potential health risks make it important to estimate radiation dose absorbed by the foetus when a pregnant woman has a CT scan. A free, web-based tool developed at the University Hospital Zurich’s Institute of Diagnostic and Interventional Radiology makes this calculation easier.