inclusion criteria: all members of participating training facilities age 18 years or older who are not at increased risk for severe covid-19 disease (see www.fhi.no for criteria) are eligible for participation if they plan to use the training facility regularly during the project period are willing to adhere to training policies during the project accept assessment of project endpoints approve handling of data for the project

inclusion criteria: all members of participating training facilities age 18 years or older who are not at increased risk for severe covid-19 disease (see www.fhi.no for criteria) are eligible for participation if they plan to use the training facility regularly during the project period are willing to adhere to training policies during the project accept assessment of project endpoints approve handling of data for the project