An unvaccinated French boy is believed to have reintroduced measles to Costa Rica, a country that had been free of the disease for five years.
Costa Rica’s health ministry said the five-year-old had arrived in the country with his parents on February 18. Local media reported that the illness was discovered when the boy and his mother - neither of whom had been vaccinated - consulted a doctor about a ‘rash’.
They confirmed other children who attended the boy’s school in France had come down with measles.
The arrival of the contagious and potentially deadly disease in a country that has been measles-free since 2014 is likely to increase concern about the anti-vaccine movement.