SAN ANTONIO -

As of Saturday, the Center for Disease Control reported California, Mississippi and Hawaii were the only states in the U.S. that have yet to see widespread levels of the flu virus.

Some medical experts believe the country may have turned the corner on flu season. They point to a drop in flu levels across several southern states as evidence, but some medical experts are projecting the country may hit the peak of flu season more than once.

"The second peak is probably going to be late February into March," said Dr. Evan Ratner, owner and medical director of Impact Urgent Care.

Ratner said this year’s flu season started about a month earlier, in September rather than October. He said the strain of this year’s virus is also different.

"Previous years we've had we've seen flu that primarily attacked the GI (gastro intestinal) system where people had diarrhea and vomiting," said Ratner. "This year it's clearly respiratory."

Experts say it will be several weeks before they know if the country has hit the peak of flu season, but Ratner said that’s no excuse to skip a vaccination.

"Most of the people we’re treating for the flu have not had the flu shot," said Ratner.