cases climb

As reported cases of Legionnaires’ disease climb in the United States — there have been three major outbreaks in the news this summer — researchers say the increase could be partly a result of climate change.

More than three times as many cases of legionellosis, of which Legionnaires’ disease is one form, were reported in 2009 than 2000 — 3,522 up from 1,110, according to a report from the Centers for Disease Control and Prevention.

Dr. David N. Fisman, a professor at the Dalla Lana School of Public Health at the University of Toronto, said in an email that he doubted the increase was the result solely of improved testing. The rise is linear and across all regions of the United States, he said.

“Given that we know climate change is going to make for hotter, stormier summers (and already is doing so) it doesn’t seem like a huge leap to suggest that the ongoing rise in legionellosis in the US could be at least partly due to climate change,” he wrote.

NBC New York, 30 Jul 2015