I have a friend who seemed to be overreacting about clean hands and home. At the beginning, I was thinking that is great he is so clean, but now I think he is not normal. He always mentions how bacterium is so dangerous for human. Somehow, I cannot believe this, I know there are some species dangerous, but not each bacterium is harmful. Can you tell me more about bacterium, should we all take care about it more then we do?
I was also afraid somehow about bacterium when I was younger. That is normal, since we all had so many injections and tablets because some bacterium occurred in our organism. Anyway, I was interested into this species, so I was reading about it. I found out one interesting fact, that each cell of human body has 40 harmless bacteria on its surface. I know, this is amazing fact, and I think it should tell us something. I do not know exact percentage but small number of each bacterium in the world are harmful for human being. Understanding why bacteria in general are so species-specific, has been a major problem for a long time, I am sure. Bacterium can be helpful in many cases, for example in our digestive system. Sometimes, our domestic bacterium fights pathogenic ones, to protect our organism. All this made me think if bacterium should be though as some harmful little organisms, or not.