A large chunk of cases are from 2 big outbreaks in and around New York City.
In global developments, European officials warn of a growing gap in vaccine coverage, and the WHO certifies measles and rubella elimination in Bahrain, Oman, and Iran.
The agency is tracking 10 active outbreaks across the country, including one involving almost 500 cases in New York City.
International travel and low vaccination rates have combined to ignite outbreaks.
Part of the weekly rise in measles infections is related to further cases in ongoing outbreaks.
The WHO is stepping up its response in Europe, as cases surge in Tunisa and researchers plot at-risk US sites.
Despite pockets of vaccine resistance that has led to a surge in measles cases in the United States, a new poll found that 87% of Americans believe the measles virus is dangerous and that 87% believe the vaccine against it is safe.
The US count grew by 60, to 764 cases, the most in 25 years, while Europe has recorded 13 deaths.
The Democratic Republic of the Congo (DRC) health ministry said today that Ebola infections have been confirmed in 15 more people, 2 of them health workers.
A growing measles outbreak in the Philippines is being fueled by vaccine hesitancy that originated in the Dengvaxia vaccine controversy, which has embroiled that nation for the last 3 years.
