The California Department of Public Health banned indoor singing in places of worship to avoid chances of coronavirus transmission via exhaled air.
Local Health Officers are to consider appropriate limitations on both outdoor and indoor attendance capacities. Singing is proven to be a way of spreading the virus. Hence, California no longer allows singing in churches.
The COVID-19 pandemic has given rise to a lot of potentially dangerous misinformation. For reliable advice on COVID-19 including symptoms, prevention and available treatment, please refer to the World Health Organisation or your national healthcare authority.