@Houston mayor says masks are working! #COVID19 is mainly spread from person to person by respiratory droplets. A mask or face covering acts as a barrier to prevent respiratory droplets from traveling in the air. Help #StopTheSpread by wearing your mask in both indoor and outdoor public places. Many people with #COVID_19 show no signs of being ill or have yet to develop symptoms. Your mask can save lives. When worn properly, it is a great way to protect yourself and others. Be sure your mask always covers your mouth and nose. #BetterTogether #MaskUpHou