An investigation into a cryptosporidiosis outbreak linked to a hotel swimming pool in Washington concluded after 14 people were reported sickened in late August. The outbreak was traced to a hotel pool in the state, where contaminated water led to the illness. Health officials confirmed the source of the outbreak and completed their investigation. Cryptosporidiosis is a waterborne illness caused by a parasite that can cause severe diarrhea and dehydration. The affected individuals were identified through public health records and water quality tests. The hotel has been advised to improve its pool maintenance procedures. This incident highlights the importance of water safety in public facilities. Similar outbreaks have occurred in other states, prompting increased scrutiny of pool hygiene standards. Public health officials are now monitoring for further cases.