lysozyme just in charge against the most pathogenic the most harmful by changing. how do bacteria develop resistance to new drug therapies that question is being investigated at kira university's evolution center evolutionary biologist him and he should have organs his team are studying so-called super bugs that are spreading in hospitals some of these microbes even thrive in the disinfectants used to keep them in check. the top intuitively we tend to think of bacteria as something bad but we also know that our bodies are full of bacteria we have more bacteria in our intestines than we have body cells. in laboratory experiments drug resistant super bugs are exposed to repeated doses of antibiotics the bacteria respond with