BROOKLYN - City health officials are renewing their call for on-time childhood vaccinations after nearly a dozen Brooklyn children and adults contracted measles.

Officials are urging parents not to wait until the last minute to get their children vaccinated. They say the cases have only popped up in the past couple of months in Williamsburg and Borough Park. Two cases were in adults, the rest were in children between 8 months old and 4 years old.

In most of the cases, health officials say, each person had close contact with one another. The city says those infected were either not vaccinated or not fully vaccinated.