Investigation underway after Legionnaires' disease deaths linked to Richmond spa

Two people have died from Legionnaires' Disease, and a third person fell ill after visiting Zen Day Spa in Richmond, California. The spa has been closed after an assessment revealed that it did not have the necessary permit for a spa or pool. Legionella bacteria, which causes the disease, can be found in contaminated water droplets. The health agency is investigating the source of the potential outbreak to prevent further cases.