contaminated drinking water

Detailed Cryptosporidium

Detailed Cryptosporidium

Cryptosporidiosis is a severe diarrheal disease caused by Cryptosporidium parvumC. parvum is a single-cell animal called a protozoan.

Detailed Shigella

Detailed Shigella

Shigellosis is an acute intestinal illness caused by a group of bacteria called Shigellae. There are four species of Shigellae; Shigella sonnei (abbreviated S. sonnei or “Type D”), S. flexneri (or “Type B”), S. boydii and S. dysenteriae.