Government officials in Wisconsin are attempting to stop a suspected outbreak of measles.

In Milwaukee, one person has been confirmed with the disease but he may have spread his infection to up to 150 people.

Three others are also suspected of having the measles but have not yet been found.  Health officials are looking for a 2 year old girl, a man who is 37 and two toddlers who are 5 months and 1 year old.

Even though officials believe they have prevented an outbreak, the city of Milwaukee was offering immunizations today.  Vaccination for the measles are usually quite effective.