Pupils in Spokane , Washington , were removed from classes on February . A total of 143 were kicked out of school because they did not have documents to prove they have had legally required vaccinations . Officials decided to act after spread of the measles virus in America . Experts have warned there is a danger of a pandemic as people who have not been vaccinated are being exposed to the rest of the population .
Pupils in Spokane , Washington , were removed from classes on Monday . A total of 143 were kicked out of school because they did not have documents to prove they have had legally required vaccinations . Officials decided to act after spread of the measles virus in America . Experts have warned there is a danger of a pandemic as people who have not been vaccinated are being exposed to the rest of the population .