Zika vaccines showing promise
The University of Pittsburgh School of Medicine announces early success with two experimental vaccines that prevented the pups of immunized female mice from becoming infected with the virus.
Senate control still up for grabs
Two of the Republicans’ most vulnerable Senate seats — in Ohio and Florida — are looking safer by the day, but the GOP’s majority is still in significant doubt with evolving Democratic takeover targets in North Carolina and Missouri.
Airstrike kills militant leader
A senior commander in Syria’s rebranded al-Qaida affiliate, who was close to the global network’s top leader, has been killed in an airstrike, the group says. The Fatah al-Sham Front, previously the Nusra Front, announced the death of Ahmed Salama Mabrouk shortly after the Pentagon said the U.S. had targeted a prominent member of the group.
Prince probe focuses on doctors
Investigators are also looking into whether the fentanyl that killed him came from a black-market source. These lines of inquiry raise the prospect that physicians could be charged with writing unlawful prescriptions for the Minnesota-based rock star.