Pennsylvania health officials brace themselves as measles outbreak expected to spread

Most counties don't have their own health agencies, and some specific population groups have low vaccination rates

Pennsylvania is bracing for a wave of measles cases, with some public health officials concerned that it's only a matter of time" until the disease spreads beyond the outbreak's epicenter.

Last week the state reported its fifth measles-associated death amid 943 confirmed cases across 39 counties. The outbreak comes amid concerns that public health in the US has been hit by increasing vaccine skepticism, especially due to the power and influence of controversial health secretary Robert F Kennedy Jr.