Officials say two more cases of measles have been reported in Sedgwick County, bringing the total number of measles cases in Kansas this year to 11.

The Kansas Department of Health and Environment said in a release Tuesday that one of the new Sedgwick County cases was in an infant too young to be vaccinated and one was an adult. Both cases are linked to other recently reported cases.

KDHE says there have been eight cases reported in Sedgwick County and three in Johnson County this year.

Measles cases have been rare in the U.S. since indigenous measles were declared eliminated in the country in 2000.

KDHE says there has been a resurgence in cases this year, with more than 566 confirmed cases reported in 20 states through July 11.