During surprise drills, facilities conducted symptom screening in 93% of cases but asked about exposure to avian flu in only 10%.
The 39-year-old woman had underlying health conditions, including a previous measles infection.
The US now has 4,080 confirmed cases, more than a quarter of which are in hard-hit Pennsylvania.
For every vaccine study now being undertaken by HHS, the methods and findings must stand up to careful scrutiny.
A letter signed by 31 Democrats in Congress asks Erica Schwartz how she plans to uphold her pledge that the CDC will provide evidence-based public health guidance.
While rare, measles-related conditions like acute disseminated encephalomyelitis can cause death, disability, and other chronic medical issues, sometimes persisting years after an initial infection.
No other state has reported that many measles cases in 35 years.
With more than 200 new cases, the US now has 3,886 confirmed infections, while Pennsylvania has reached 977.
The measles virus kills crucial immune cells, putting survivors at risk of being reinfected with diseases they’ve already had.
The measles infection rate in Jerusalem during the outbreak was 15 times higher than in the rest of Israel.