Malaria in the states: A sign of climate change?

Yes and no. It’s a little complicated. Here’s why.

In the past two months, five cases of malaria were reported in the U.S.: four in Florida and one in Texas. This prompted the CDC to disseminate a Health Alert Network (HAN) advisory last week—a warning to physicians to stay alert for cases.

Each year, about 2,000 cases are reported, so malaria isn't new in the U.S., albeit rare. However, this is the firs…