Cryptosporidium is a tiny parasite that can cause an illness called cryptosporidiosis. It is often found in contaminated water, especially in swimming pools, lakes, and rivers. When people accidentally swallow the parasite, it can lead to symptoms like diarrhea, stomach cramps, and nausea. This parasite is tough and can survive in harsh conditions, making it hard to eliminate from water sources. To protect yourself, it's important to drink clean water and practice good hygiene, especially after swimming in natural bodies of water. Awareness of Cryptosporidium can help prevent outbreaks and keep communities healthy.