Health Care

U.S. government auditors are expanding their review of federal disaster aid mismanagement by the Chippewa Cree Tribe after finding fraud, waste and abuse in a project to demolish the Montana tribe's health clinic that was destroyed by flooding in 2010.

Israeli drugmaker Teva Pharmaceutical said Friday that it completed buying 4.6 percent of Mylan N.V.

Representatives for a Maine hospital say bargaining teams and a nursing union are agreeing to extend the nurses' current contract through July 2.

Mylan's biggest shareholder is backing the generic drugmaker's plan to remain a stand-alone company as it fights a takeover bid from larger rival Teva Pharmaceutical.

Abbvie Inc. specified the stock and cash breakdown on Thursday of its previously announced $21 billion buyout of Pharmacyclics Inc.

Construction has begun on a $100 million stem cell research and manufacturing facility.

Drugmaker Actavis said Monday that its $66 billion purchase of Botox maker Allergan helped boost its revenue 59 percent in the last quarter.

Horizon Pharma reported a loss of $19.6 million in its first quarter even though the drugmaker's revenue more than doubled.

British-based drugmaker GlaxoSmithKline opted Wednesday to keep its stake in its stand-alone HIV business as it set out its strategy following a big deal with Switzerland's Novartis.

CVS Health's first-quarter earnings, fueled by specialty drug claims, climbed 8 percent and easily topped Wall Street expectations.

Federal health officials say more information is needed to establish the safety and effectiveness of common hand cleaners used in hospitals, doctors' offices and nursing homes to kill germs and prevent infections.

Shares of some top managed care companies were down at the close of trading: Aetna fell $1.90 or 1.7 percent, to $106.92.