Can I collect health data in relation to Covid-19?

Yes. With respect to employees you have an obligation to protect their health so you can gather information to do that. You might gather information from your employees on who has the virus, who has had it and recovered and also who has tested negative. You might also want to know if individuals have been in contact with someone who has it or if they are in a vulnerable group. It is reasonable to want to know where individuals have travelled. In the future it may also be reasonable to know if they are planning to travel to a virus hot spot, as the impact of the virus around the world is likely to continue for some time even after the outbreak has been contained in the UK.

It is reasonable to gather some information about visitors to your site, be they customers or suppliers, as this information will also help protect your staff. However, you should keep what you gather to a minimum. For visitors, it’s unlikely that you need to know anything more than they have Covid-19, are displaying symptoms or have recently been in contact with someone who has the virus.