Shares of Biogen and other drugmakers researching Alzheimer’s disease soared Wednesday after Japan’s Eisai Co. said its potential treatment appeared to slow the fatal disease in a late-stage study. The drugmaker said early results showed that its treatment, lecanemab, reduced patient ...

LONDON (AP) — For years, global health officials have used billions of drops of an oral vaccine in a remarkably effective campaign aimed at wiping out polio in its last remaining strongholds — typically, poor, politically unstable corners of the world. Now, in a surprising twist in the ...

GAYAN, Afghanistan (AP) — A powerful earthquake struck a rugged, mountainous region of eastern Afghanistan early Wednesday, flattening stone and mud-brick homes and killing at least 1,000 people. The disaster posed a new test for Afghanistan’s Taliban rulers and relief agencies already ...

MARIUPOL, Ukraine (AP) — Corpses lie in the streets of Mariupol. Hungry people break into stores in search of food and melt snow for water. Thousands huddle in basements, trembling at the sound of Russian shells pounding this strategic port city. “Why shouldn’t I cry?” Goma Janna ...

KYIV, Ukraine (AP) — Russia launched a full-scale invasion of Ukraine on Thursday, unleashing airstrikes on cities and military bases and sending troops and tanks from multiple directions in a move that could rewrite the world's geopolitical landscape. Ukraine's government pleaded for help as ...

THE HAGUE, Netherlands (AP) — Cases of the omicron variant of the coronavirus popped up in countries on opposite sides of the world Sunday and many governments rushed to close their borders even as scientists cautioned that it’s not clear if the new variant is more alarming than other ...