Hello @Gill965
You can ask for any reassurance you like and set up your listing in a way that makes you feel comfortable. @Gill965
You can say you only accept guests that have been double vaccinated and ask for proof of this.
You can block off access to shared amenities such as kitchens and living space.
You can wear a mask and ask that guests wear a mask in communal areas.
I provide guests with their own cutlery, crockery, dish-cloths and drying up towels. I also provide hand gel and hand cream and ask that they use this when they come in and after using the kitchen/dining space.
Most of my guests are vaccinated and mention this but I don't have it in my listing as a requirement.