Few cases of measles have been reported by the Philadelphia Health Department in the past few weeks.

According to the sources, the cases contracted the disease from a primary case while undergoing treatment at the Children’s Hospital of Philadelphia.

·The primary case was found to have contracted the disease outside the US.

A list of possible places of exposure has been drafted by the health department.

Those who have had a history of visiting such places have been advised to quarantine for 21 days after the exposure.

The department is also providing the following preventive strategies free of charge:

This demonstrates the need for ongoing surveillance to stop the admission of cases from other nations even after indigenous cases have been eliminated.