00:01
Okay, so for the first question, a rototiller, a person, let's just call it, got injured with a rototiller.
00:15
Afterwards, the red, the infection, sorry, the wound got infected.
00:19
It turned red and swollen, and then there was this foul odor, smelling like rotting meat, and then eventually turned black in color.
00:31
So what does this person have? now, there's all the questions, the answers are various kinds of cutaneous skin infections by bacteria, but there's some key words that we need to look at.
00:42
First thing is this term.
00:46
There's a foul odor that smells like rotting meat, and that eventually it turns black.
00:53
Okay, these are classic, classic symptoms of gas gangrene.
01:02
Now, most typically, gas gangrene is caused by a bacteria called clostridium perfringens, and that's what typically causes gas gangrene.
01:26
It's not the only bacterial infection to cause gangrene.
01:30
I think klebsiella pneumoniae also causes gangrene, but only like in very rare cases, and only in diabetic patients.
01:39
Clostridium perfringens can cause gangrene in any healthy human being that ends up getting a deep tissue infection.
01:47
So this isn't a, this kind of wound, by the way, that's getting gangrenous, getting gas gangrene.
01:56
This doesn't happen in superficial wounds, right? it's not the very top of the skin.
02:03
This happens in deep tissue.
02:06
Why is this? it's because clostridium perfringens is an anaerobic bacteria.
02:13
It cannot survive in oxygen.
02:15
That's why when it gets to the deep tissue where there's less oxygen in the environment, it will multiply and cause this disease because of all the toxins spitting out.
02:31
Okay, so key words, rotting meat smell, black color.
02:35
Oh, and you know what that black color is? this, whoops, this black color is because you have necrotizing flesh or necrotizing tissue.
02:51
The cells that are surrounding this infection, they're dying.
02:58
That's why they're turning black, and that's why it smells like rotting meat...