What pathogen causes diseases that are often spread through contaminated water?

Bacteria is a pathogen which causes diseases that are often spread through contaminated water

Your answer is  d.)relationship between pressure and air volume and led to the understanding of how respiration works

Ithink the correct answer would be that since the disease is passed by a hand shake and can be cured with antibiotics that it could be an infection. an example could be that once when i was working in a bush camp, i got blood poisoning from blood blisters that got infected. our cook did not wash his hands after going to the bathroom and he passed staphyloccus on to the crew he fed. one other person also got a bad similar infection on the side of his face. i had to be rescued by helicopter and taken to the hospital so i wouldn't die!