Japanese Prime Minister Shinzo Abe speaks during a ceremony at the Hiroshima Peace Memorial Park on Aug. 6 to mark the 75th anniversary of the U.S. atomic attack. Abe announced his resignation Thursday.
Philonise Floyd, right, brother of George Floyd, gets ready to march from the Lincoln Memorial to the Martin Luther King Jr. Memorial, during the March on Washington on Friday.
Several influenza vaccines have been made in the form of a nasal spray, instead of an injection. The sprays confer two kinds of immunity to the recipient but can be difficult technologically to make.
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