against the background of medical masks and sterile tissue, a drug in an ampoule and pills to increase immunity

background medical masks sterile tissue drug an ampoule pills increase immunity syringe coronavirus medicine infection pandemic virus disease epidemic health flu vaccine antibiotic concept respiratory mask medication china 2019ncov tablets chinese pneumonia syndrome illness biohazard outbreak hospital microbiology healthy pharmacy protective bacteria protection quarantine clinic care infectious pill therapy ncov fever infected sick wuhan tablet