ALBANY, N.Y. — In a story Aug. 31 about New York state requiring meningitis vaccines for seventh and 12th graders, The Associated Press reported erroneously the number of disease strains it would protect against. The required vaccine will protect against four strains, not five.

A corrected version of the story is below:

New York to require meningitis vaccine for 7th, 12th graders

New York state will require all students in the 7th and 12th grades to be vaccinated against meningitis beginning Thursday

ALBANY, N.Y. — As of Thursday all students entering the seventh or 12th grades in New York state will be required to be vaccinated against meningitis.

Twenty-seven states already require the vaccine as part of standard immunizations.

Meningitis refers to acute and often life-threatening inflammation of the membranes covering the brain.

More than 1,000 people contract the disease each year in the U.S., with 10 to 15 percent of them dying from the disease. Survivors can suffer hearing loss or limb amputation.

Many public health advocates supported the push for the mandate, which lawmakers passed in 2015.

The vaccines now required for seventh- and 12th-graders protect against four strains that cause the majority of meningitis cases.