Fitness-tracking gadgets are selling out, home exercise classes have never been more popular and robotics crews are pivoting to making sanitation robots. The Covid-19 pandemic has triggered a seismic wave of health awareness and anxiety, which is energizing a new category of virus-fighting tech.

The fear of infection has accelerated the adoption of apps and wearables as a means to feel better protected.

"Having accurate and immediate feedback about our body temperature, blood pressure and other health signals helps to restore people’s sense of control,” said Andy Yap, a social psychologist at the INSEAD business school.