close up. respiratory diseases. a 5-year-old child turns on a button on the nebulizer to begin inhalation. therapy of coronavirus

allergy asthma asthmatic begin breath bronchitis broncho bronchospasm button caucasian child clinic close copy coronavirus disease diseases doctor equipment flu girl health healthy hospital ill illness inhalation inhaler inhaling kid little lungs mask medical medicine nebulizer nozzle old pandemic patient people person respiratory sick space therapy tracheitis treatment turns white years young