More than 900 students and staff members at two universities in Los Angeles were quarantined or returned home this week in one of the widest efforts, however, by public health authorities to prevent the spread of measles in the United States, where the cases reached a 25-year high.
By Friday afternoon, two days after Los Angeles County ordered precautions, about 200 of the affected people were released to return after proving the immunity of the disease, through medical records or tests, school officials said.
The action at the University of California, Los Angeles and the California State University in Los Angeles, which together have more than 65,000 students, reflected the seriousness of public health officials taking over the nation's emergence.
Quarantined persons were instructed to stay home and avoid contact with others, although it was not clear how these orders could be enforced or what violators might face penalties.
"Small measles actually kill people, so we have to take it seriously," said Dr. Arman Dorian, chief medical officer at the USC Verdugo Hills Hospital.
The number of cases of measles in the United States has risen to almost 700 this year, including five in Los Angeles and 38 in California. The bulk is blamed to a large extent by parents who do not take their children vaccinated for misinformation about possible dangers.
Cal State-LA. reported 656 students and staff still under quarantine, while UCLA said there were fewer than 50 people.
Call state-LA. is primarily a traveling school, while many UCLA students live on campus. Some UCLA students were given quarantine space to stay, university officials said, although they did not give details. Only one person remained on Friday.
Those covered by the quarantine were set on the basis of their possible exposure or an infected UCLA student attending two-hour classes three days earlier this month or a person with measles who visited Cal State-L.A. on April 11, officials said.
Given how much time a person can stay contagious, officials have said the quarantine will end in Los Angeles on Tuesday and at Cal State-LA. on Thursday.
States in the United States, cities respond to the epidemic
Around the United States, lawmakers in California, New York, the state of Washington and Oregon, responded to the outbreak by attempting to get rid of the exemptions for vaccinating children. On Friday, US President Donald Trump summoned everyone to be vaccinated.
Most cases are at the center of two ultra-Orthodox Jewish communities in New York – one in Brooklyn, and the other in the Rockland suburbs.
In Rockland County, officials declared a state of emergency and at one point tried to prevent unvaccinated children from schools and other public places, but the judge quashed the order.
Authorities ordered compulsory vaccinations earlier in their month in neighboring neighborhoods of Brooklyn and threatened with fines of $ 1,000. City officials said earlier this week that 12 people had been summoned.
Smallpox usually cause fever and rashes from all over the world, but in very few cases can lead to lethal complications such as pneumonia and brain swelling.
Centers for Disease Control and Prevention recommend vaccination for all over a year, except for people who have had this disease as children. Those who have had measles are immune.