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A few bacteria have become resistant to '

just about EVERY disinfectant, antibiotic J

and drug! How do they do this?

HERE'S HOW:

One common way for a bug to become

resistant is by already being resistant.

For example, here's a diagram of a �

square dish full of bacteria. - •

• We will now see what happens
when the hospital fights the bugs

with bug-killing chemicals.

It kills all but a few

►

Jhe survivors breed 'superbugs' take over