lungs infection logo

adenocarcinoma airway alveolar art asthma background bacteria bronchi bronchial bronchitis bronchus cancer china chronic clip clipart copd coronavirus cough coughing disease diseases emphysema flu icon icons illness illustration infection infections inflammation influenza isolated logo logos lung lungs medicine pain pictogram pleura pleural pleurisy pleuritic pneumonia posters pulmonary respiratory sars sick sign signs silhouette trachea tract tuberculosis tumor tumour vector viral virus viruses way wuhan