A 16-month-old child suffering from life-threatening complications from measles was taken to a hospital in northern Israel on Wednesday.
The toddler was reportedly in critical condition at the Emek Medical Center due to complications of meningitis and pneumonia resulting from a measles infection.
Authorities were investigating if the girl contracted the disease during a visit to relatives in Yerushalayim.
According to news reports, the child, from a chareidi family, was not immunized.
More than 2,000 cases of measles have been recorded in Israel this year, and hospital officials have urged the Health Ministry to mount a nationwide vaccination campaign to immunize the entire population.
They also said there is a shortage of isolation rooms for all the measles patients, according to Yedioth Ahronoth.
Last month, an 18-month-old in Yerushalayim died of the disease, the first recorded death from measles in Israel in over a year.