I’ve been on tour in Bristol and still been busy.
There aren’t many precautions you can take, if a client has corona - they will probably pass it on to you, no matter how clean you both are and even if you don’t kiss as it’s an airborne virus - you only need to be within 2 metres of them.
Also there’s lots of cases where people with the virus have had no symptoms at all, have felt fine and have tested positive.
From a sales point of view - don’t mention Coronavirus on your profile, it’ll only stop people from coming to you. We all know about it, guys don’t need reminding and I very highly doubt a guy will come and see you if he’s feeling unwell.
The only few suggestions i’d make would be to shower throughly after every booking (which I hope you do anyway) brush teeth and use alcohol mouthwash - gargle it. Also burn sage once a day in the room you are working from, it kills 94% of airborne bacteria and cleanses the room for up to 24 hours.