Health officials said Friday nearly 700 people at two universities in Los Angeles were ordered to stay home because they might have had contact with two measles patients this month.
At one point about 1,700 people were quarantined, but on Friday, health officials had announced more than 1,000 people who had presented proof of vaccination at a press conference.
The highest number of quarantined people was associated with the state of Cal In Los Angeles, where a single measles patient caused hundreds of exposures by attending a university library, officials said. According to the university, this number includes at least 106 employees.
"We also issued an order requiring all who were in the library to be called on 11-11, between 11 and 3 years, to notify health services and find that they were immune before they introduced themselves to the public "said Barbara Ferrer, director of health care in Los Angeles County.
Throughout the city at UCLA, 853 students and seven faculty members may have been exposed to a measles patient. Ferrer said the health authorities had checked hundreds of vaccinations and quarantined 45 students and a faculty member.
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Treatment, preventive care and vaccinations against measles all over the world
See gallery  A child is vaccinated on April 16, 2018 in the Romanian capital Bucharest by a family doctor by a family doctor.
Measles continues to claim young people in Romania, where almost 40 children died in an outbreak, many parents blamed for being misled by anxiety stories that vaccinations were dangerous. Since the end of 2016, some 12,000 people have been injured in measles in the second-poorest country in the European Union, 46 of whom have died. 39 of the dead were children under the age of three who had not been vaccinated. This makes Romania one of the worst affected countries in the ongoing measles outbreak in Europe. / AFP PHOTO / Daniel MIHAILESCU (image credits should be DANIEL MIHAILESCU / AFP / Getty Images)