What causes breakthrough measles infections? A small number of people who are fully vaccinated may get sick during a large outbreak, doctors say. NBC News

...Infectious diseases doctors are at pains to emphasize that the MMR vaccine is one of the most effective vaccines on the market, but as Rodney Rohde, a professor at Texas State University explains, a small number of people who are fully vaccinated may get sick during a large outbreak.

Flu continues to ebb in US as pediatric deaths reach 198 One state, however—New York—reports high activity of influenza-like illness. CIDRAP

US flu activity declined steadily again last week, with rates of influenza-like illness (ILI) dropping further and staying below baseline levels, but flu-related deaths in children climbed to 198, the Centers for Disease Control and Prevention (CDC) said in its weekly update Friday. ...