HUNTINGTON BEACH, Calif. » A recent measles outbreak traced to Disney theme parks includes five park employees who were infected.

Orange County Health Care Agency spokeswoman Deanne Thompson said Tuesday that as her agency expected, the outbreak included several workers at Disneyland and Disney California Adventure who live in various counties.

Disney parks‘ chief medical officer says of the five employees, three have fully recovered and returned to work, and two remain off.

Disney says its "cast members," as it calls park employees, have been given immunity tests and offered vaccinations since it first heard of the outbreak earlier this month. People suspected of having measles are put on paid leave until their immunity can be established.

Several dozen people from five U.S. states and Mexico have been infected in the outbreak.