 Bacteria, as we all know, is one of the most prominent cause of douchefile, stomach ache and just many many diseases in our much as we have bacteria that are very important in our system. We have pathogenic bacteria. We have the E. coli, they are pathogenic and they are coming from contaminated water. What are the symptoms as we see here, they can cause mostly diarrhea, can cause death in immunocompromised individuals. Immunocompromised individuals are people who are under low immunity. For example, people who are suffering from HIV and exact esectra. So if they acquire this kind of illness, it can cause death. Then we have another type of bacteria, Shigela and Simonela. Also acquired from contaminated water. And what are the symptoms? Frequent passage of disease with blood and vomiting. And then we have all that among these, we have all these acquired from swimming in water. Ear canal swells causing pain and tenderness to detosh. So sometimes you go swimming and you see maybe you are infected somewhere, you thinking that maybe a mosquito or something had bitten you, you would not know that maybe it's a bacterial infection.