•Republican Mike Minogue wins the GOP nomination to challenge Gov. Maura Healey, who ran unopposed in the Democratic primary, setting up the general election matchup.
•Sen. Ed Markey, 80, cruises to victory over Rep. Seth Moulton in the Massachusetts Democratic Senate primary, setting up a general-election matchup against Republican John Deaton.
•DR Congo's Ebola outbreak grows further, reaching 5,514 confirmed cases and 2,642 deaths (about 48% fatality rate) as Ervebo's effectiveness against the Bundibugyo strain remains unproven.
•CEPI commits up to $16.5 million to Minapharm/ProBioGen to advance a fifth Bundibugyo-specific vaccine candidate into early-stage human trials amid a $1.1 billion funding appeal.