Here's why people born before 1989 may need another dose of the measles vaccine

What year were you born? If it was before 1989, then chances are you need to get the measles vaccine again. Currently, measles is back on the rise in the U.S. It hit the highest number of reported case on record since the disease was declared eradicated in 2000. There have been 681 measles cases across 22 states so far this year, a CNN review of state and local health department data shows. Most of the cases in the U.S. have popped up in communities with low vaccination rates. Measles outbreaks -- defined as three or more cases -- have been ongoing this year in Rockland County and New York, New York; Santa Cruz and Butte counties in California; Washington state; New Jersey; and Michigan.The outbreak might have Americans wondering if they should get the vaccination or if they are covered. Dr. Peter Hotez, dean of the National School of Tropical Medicine at Baylor College of Medicine and director of the Texas Children's Hospital Center for Vaccine Development, told KSDK that anyone born before 1989 likely received one dose because it was the norm at that time. Following 1989, though, it was discovered that two doses was the recommended amount.Those worried about their immunization levels at any age, though, should call their healthcare provider about possibly getting the proper dosage.

What year were you born? If it was before 1989, then chances are you need to get the measles vaccine again.

Currently, measles is back on the rise in the U.S. It hit the highest number of reported case on record since the disease was declared eradicated in 2000.

There have been 681 measles cases across 22 states so far this year, a CNN review of state and local health department data shows.

Most of the cases in the U.S. have popped up in communities with low vaccination rates. Measles outbreaks -- defined as three or more cases -- have been ongoing this year in Rockland County and New York, New York; Santa Cruz and Butte counties in California; Washington state; New Jersey; and Michigan.

The outbreak might have Americans wondering if they should get the vaccination or if they are covered.

Dr. Peter Hotez, dean of the National School of Tropical Medicine at Baylor College of Medicine and director of the Texas Children's Hospital Center for Vaccine Development, told KSDK that anyone born before 1989 likely received one dose because it was the norm at that time. Following 1989, though, it was discovered that two doses was the recommended amount.

Those worried about their immunization levels at any age, though, should call their healthcare provider about possibly getting the proper dosage.