machines, but human resources sttcrehethd in. ou y re going to go in to intubate a pieatntan, d tathis time, we need to be fully epprar weditouh r e.pp face shielord e cyeov, ern- 95 mask with another mask on top, impermeable gown, gloves d oue blglesov. reporter: today, the head of mt. sinai s cardiac icu turning it into a covid ward. how did our patient do, the onwee eubxtat ledasnit ght? pretty good. on wdeulrf. , she s still tuexbad teand breathing easily, right? yes. wdeonrf.ul reporter: but those working to save lives also falling victim to the disease. ke e.r. doctor frank gabrin in nejew rs.ey i believe that caring for others should be the most emotionally rewarding job on the planet. reporr:te d gr.abn ri corantct tedheir vushi wle tryi tngo vesa oerths.