There was a patient during my intern year that cemented the seriousness of this disease in my mind. I was on night float, meaning that I was working nights to admit new patients and it was my responsibility to take care of issues that arise. I was asked by the day docs to check on some lab results for a patient. He was an eighty year-old guy admitted for influenza. He had some mild heart disease but was feeling great and doing well prior to this. He had gone to get a flu shot at the store a few weeks prior but they had run out. Anyway, I was notified by his nurse around midnight that his lab work showed some heart damage. I went and woke the guy up and he said he felt fine, just tired. I ordered some meds for him and went back to seeing new patients.
About 5am I was called again by the nurse who said the guy looked rough. I went back to see him and the change was startling. He was having trouble breathing and when we checked his vitals we found that his heart rate was about 160 and in an abnormal rhythm. This is not good in an eighty year old heart. His blood pressure was dropping as was his oxygen level. I called a code and started to tell the patient that we needed to shock his heart to slow it down and I couldn't give him a lot of sedative medications or it might drop his blood pressure even lower and kill him. He said to do what we had to. We gave him a touch of sedative and shocked him. It didn't work so we wheeled him down the hall to the ICU. He had stopped responding by now. The ICU doc showed up and we started meds to keep his blood pressure up and try to slow his heart. I distinctly remember one of the nurses saying "look, his heart rate is finally slowing down" and then watching the monitor as his heart rate went from 160 to 120 to 80 to 20 to flatline in about thirty seconds. The nurses started CPR at just the same time the chaplain tapped me on the shoulder and said that the patients three daughters were here and waiting for an update.
I left the patient with the ICU team and went out to the daughters. I introduced myself and then got right to the point that their father wasn't doing well and his heart had stopped and we were trying to resuscitate him right now. One of them looked at me and said "he just had the flu!" with enough disgust and anger to actually make me feel guilty and mumble something inadequate. All three women then pushed past me like I was a flasher on the street and went up to their father's room. One kept yelling "you're gonna make it Dad!" while the others just cried. He was finally declared dead about 8am.
It felt terrible. I remember this guy very well as I think all docs remember their first deaths in residency. This guy was pushed into heart failure by plain old influenza. He was just fragile enough as lots of old folks and young kids are. So get your flu shot! If not for you, get it so you don't give it to someone weaker than you.