It's not so obvious to me. Take for example Switzerland. Second wave hit it very hard. Since a couple of weeks it was however able to bring R0 down below 1 whil

It's not so obvious to me. Take for example Switzerland. Second wave hit it very hard. Since a couple of weeks it was however able to bring R0 down below 1 while keeping schools, stores and restaurants open. This is far from a controlled study, but the conclusion has to be that a combination of distancing, contact reduction and mask wearing is working. Note that Switzerland is densely populated and currently has relatively cold and dark weather.