Mississippi State University reports some 400 flu cases on campus, a sharp increase over similar illnesses at the same time last year.

“This is nearly 150 more cases than we saw last year, with more than 300 of those younger than 25,” said Dr. Robert K. Collins, director of the Longest Student Health Center at the university.

Collins said the annual flu shot “can go a long way toward protecting against the nasty bug,” but the current flu vaccine is proving to be only 50 percent effective against current circulating strains.

“We have seen a significant number of people who were vaccinated for the flu,” he said.

Collins it did appear the MSU outbreak has peaked.