abstract blue human lungs behind the futuristic guard shield attacted by red viruses. lungs protection. healthcare

barrier breath bronchitis coronavirus covid digital disease enterovirus flu health human infection influenza low lung measles medicine microbe parainfluenza pathogen pneumonia poly polygon protect respiratory save shield smoke tuberculosis vaccine virus defense immune prevention surgery antivirus bacteria guard immunity medical cancer vaccination inhaled corticosteroid bronchodilator antibiotic mucolytic antihistamine antiinflammatory medication