19รับ100 Wear a appropriately fitted mask when Bodily distancing is impossible or when in improperly ventilated settings. Improvements to COVID-19 surveillance in the last 5 years happen to be regular, but integration is variable across areas. ويمكن للأشخاص الذين لا تظهر عليهم الأعراض لكنهم خالطوا عن كثب شخصاً مصاباً بالعدوى https://anatolez738tsp2.dgbloggers.com/profile