SANTA MONICA—Santa Monica High School’s childcare center has closed indefinitely as of Tuesday, February 3, following an toddler’s measles diagnosis.

The 14 infants who were present that day are being quarantined for 21 days to prevent the spread of the contagious virus. The infected child was reportedly too young to be vaccinated.

Gail Pinsker, a spokeswoman for the Santa Monica-Malibu School District said “under the direction of the public health department, they are doing a contact investigation, which will determine if there is any additional concern or exposure beyond the infant toddler center.”

This is the second case of measles reported at the Santa Monica High School Campus in several weeks, although the two incidents are reportedly unrelated.

While the United States averages about 60 cases of measles a year, there have been more than 90 diagnoses of the virus in California this year alone, and 102 reported cases overall spanning 14 states. The outbreak has been linked to Disneyland in Southern California, where someone with the measles exposed others in December.