Wash your hands, and cover your mouth/nose when you cough or sneeze. Try to be clean all the time. If you touch metal handles or doors in a public place, be sure to wash your hands afterwards, and don't touch your face.
There are no known diseases ozone can cause. However there are many that claim ozone can cure diseases like Lymes disease and HIV in the same manner it is used to kill bacteria in our drinking water.
Bacteria
Many house flies carry diseases that are caused by bacteria or viruses. However, no housefly has the cure for these diseases.
Different bacteria cause a lot of different diseases.
None, but they cause many.
Drugs
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AIDS
Penicillin is used to kill bacteria that cause damage. It kills the bacteria which can cause ear damage.
A small portion, about 1%, of bacteria cause diseases. These are called pathogens or sometimes a germ.
Several diseases are caused by spirella bacteria. Two known diseases are Lyme disease and syphilis. Lyme disease is transmitted through bacteria in ticks.
Yes, of course they do.