Is Legionnaires’ disease a real threat?

Dr. Jen Ashton has what you need to know about another possible health risk on the horizon.
2:12 | 08/12/20

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Transcript for Is Legionnaires’ disease a real threat?
Some of the major developments we're tracking -- new government data showing a slight decrease in new cases, deaths and test positive rates. With known cases of coronavirus worldwide well over 20 million, at least 5.1 million of those cases here in the United States. With more than 63 million Americans tested. With me now is chief medical correspondent Dr. Ashton. The CDC definitely taking on some criticism about its handling of the coronavirus pandemic, but they're still keeping track of other possible health risks that are on horizone while at the same time addressing covid-19. This one is interesting, most recently the legionnaires' disease. We have to remember that the CDC is looking at many things at the same time. It's not all about covid-19. This particular news headline has to do with the bacterial pneumonia causing legionnaires' disease. It's fatal about 10% of the time. It's generally found in stagnant water. It was detected in some office buildings in Atlanta that CDC uses and leases, so they had to shut down those office buildings in response. And the reason why this is interesting in time of covid, we're seeing buildings now starting to reopen that had been shut down for workers, there could be real risks potentially if you've had a low occupancy period during this time. Exactly, and we're not only talking about office buildings but potentially hotels and resort, so this is about increasing awareness here, because we know that this bacteria can spread with sinks that are just recently turned on, flushing toilets and water fountains that haven't been used and start to see use. There's not yet any official guidance from the CDC on how to prevent this. Usually it's just using the water system. The good news is, it does not spread person to person. And again, symptoms of this bacterial pneumonia -- cough, fever, shortness of breath, just like covid. Awareness is key so that we can help prevent and reduce the incidents. We appreciate it, Dr. Jen. We're going to turn now to ABC's Kyra Phillips who's in

This transcript has been automatically generated and may not be 100% accurate.

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