Bacteria Not all of them can infect humans. Bacterial viruses are the same, some only infect primates, some only infect birds, some only infect fish. So usually steak, even if raw, eating is not going to be fine, but raw meat, make sure it's fresh, if it's not fresh, it will rot, and if you eat it, you'll get diarrhea, and that rot doesn't necessarily mean it's stinky. Rather, the bacteria have a growth process, fresh meat bacteria at least, room temperature for 2 hours bacteria increase, 4 hours more, but this does not affect the consumption, placed for a longer period of time will really mean corruption, so fresh steak needs to be frozen and placed, generally 3 5 minutes cooked are not a problem. At present, chickens, ducks, cows and pigs are raised in feedlots, there is no invasion of parasites, but if they are free-range chickens, ducks, cows and pigs, there is a risk of parasites. But usually 5-minute cooked steak, although not cooked, but the actual internal temperature of more than 60 degrees, if you continue to this temperature for a long time is to kill most of the parasites