The latest measles outbreak unleashed in the US – described as the most virulent suffered by the country since the illness was thought to have been eradicated in 2000— far from concluding continues to add states to the list of those infected. The latest news offered by the Center of Disease Control and Prevention, in charge of monitoring the outbreak, now registers 121 confirmed cases in 17 states, three more than those appearing on the list last week –Delaware, Michigan and Nevada.

Political controversy and confrontations aside, California, where the first infection was located –attributed to an infected tourist who visited Disneyland in Anaheim, between December 17 and 20—is the state hit the hardest by the virus with 88 cases registered from the time that the US agency began its control on January 1, 2015 to its latest report, issued on February 6.

Pennsylvania, with only one case (registered in Cumberland County), is stable and for now free of new infections, after the Pennsylvania Health Department confirmed various false cases, the last of these in Lancaster County.