Legionnaires' disease is a respiratory bacterial infection usually spread through mist that comes from a water source. Unless the water supply is tested and corrective measures are taken, we cannot ensure that the people who consume this water are safe. Hence Michigan's water supply should be tested for the Legionella bacteria
If they do not test the water will be a risk for population of this area since Legionnaires' disease is a respiratory bacterial infection usually spread through mist that comes from a water source. What happened in Michigan was that after the city switched its water supply, the medical staff noticed an increase in people coming in for treatment who were diagnosed with Legionnaires so that is not safe.
There is no doubt that the people of Flint, Michigan have endured a terrible water crisis and it does not appear to be over yet. In order to do right by the people there, every precaution should be taken to ensure that the drinking water is safe, and that includes a test for Legionella bacteria.
Flint, Michigan's water supply should be tested for not only the Legionella bacteria, but any other potential bacteria or foreign substance or chemical that could potentially contaminate the water. At this point, no safety measure should be overlooked. The health and well-being of residents has already been compromised enough. Better safe than sorry.