I would think it depends on what kind of bacteria it is.
bad hygeine
because they take over other bad bacterias and they can be good or bad
Bad smells in the aircon is usually caused by bacteria. You can buy special air con sprays that kill off moulds and bacterias making the car smell nice again.
burn it
Any meat has something of a smell to it. Smell all the food you buy and learn what fresh meat smells like. Then you will know when it is bad. If it doesn't smell right to you or makes you recoil, don't use it.
The mixture of chemicals combine to make it smell bad when it blossoms if your in VA you know how bad it right now
No but antibiotics will.
make you smell bad
if you put milk in a plant it will smell like rotten eggs and your house will be stffed with a bad smell and you will barf and you will have to move out of your house.
pathogens
Because their culture does not make it a bad thing to be dirty and not to bathe. You are not looked down upon if you smell bad in middle eastern cultures.
A bad coil pack would not smell like gasoline.