evidence: - Avoid crowded indoor spaces. Wear a mask anytime you are indoors around other people - Wash your hands often with soap and warm water. If soap and water are not available, use hand sanitizer containing at least 60% alcohol. [...] Be aware that some people around you may have risk factors for more severe disease. Masking, physical distancing, hand hygiene, and covering your coughs and sneezes helps protect them. [...] Schools and childcare settings should follow the recommendations for the general population. Recognize that young children may not always be able to wear a mask effectively. Children under 2 years are not asked to mask when they return to normal activities.