to head off scrutiny, safe and provoked a strong immune response

Small Vaccine Trial Shows Promise; Stocks Soar

The drugmaker Moderna said a test in eight healthy volunteers found its experimental vaccine was safe and provoked a strong immune response.


U.S.-China Feud Erupts at World Health Assembly

China’s president pledged $2 billion to fight the virus, a move the U.S. criticized as an effort to head off scrutiny of its handling of the pandemic.