The Pennsylvania Department of Health updated its measles dashboard on Monday, showing the state had passed 900 cases for the first time during the ongoing outbreak. The latest figures represent an increase of 115 infections over the past week, following earlier reports of 55 new cases between Wednesday and Friday.
According to the department's news release on Friday, the outbreak has spread to 39 counties so far this year. 173 people have been hospitalized, and four measles-associated deaths have been reported. State health officials said less than 1% of those infected had been vaccinated.
Pennsylvania is currently reporting the highest number of measles cases in the country, as health authorities continue efforts to contain the disease. The outbreak has drawn attention to declining vaccination rates in some communities.
The Department of Health has urged residents to ensure they are up to date on measles, mumps and rubella (MMR) vaccinations, which are highly effective at preventing the disease. Officials have also asked anyone with symptoms to isolate and contact their healthcare provider.