Why can't the world only have good germs?

Simply put, you can't kill 100% of something we have only discovered 1% of. Humanity will never identify all bacteria, as every single bacterium cell is different from the other, sometimes drastically. read more

Failure to use the resources at had means no more generations, extinction. What you might call good germs are those that evolved along side of us (or inside of us) like the bacteria in our guts that live by helping us digest our food. If you must think in good and bad terms then bad germs may be forcing humans to build more advanced immune systems. read more

Scientists also use bacteria in other important ways. For example, some medicines and many vaccines are made from good bacteria. Researchers have been studying good bacteria more thoroughly in recent years. Some believe that using antibiotics too often might kill off good bacteria, leading to obesity due to inefficient digestion. read more

Good bacteria live in our intestines and help us use the nutrients in the food we eat and make waste from what's left over. We couldn't make the most of a healthy meal without these important helper germs! Some bacteria are also used by scientists in labs to produce medicines and vaccines (say: VAK-seens). read more