Some state and local public health agencies have already recommended that immunocompromised persons drink only boiled, filtered, or bottled water. What does CDC think about this?
A. Because we do not have national data, these decisions should be made by local public health agencies who have assessed the level of risk in their communities. Other cities and states have assessed the risk and decided that in their location, the risk of infection with Cryptosporidium from drinking water is extremely low and does not warrant such a recommendation.