An increasing number of babies born using fertility treatments are twins, and they carry special risks often overlooked in the desire to produce new families.

  A small inhaler and insulin powder created by the MannKind Corporation are before the F.D.A. for marketing approval.

  A travel insurance company refused to refund $7,000 to a terminally ill man who canceled a trip without seeing a doctor.

  Data released last month showing an AIDS vaccine’s promise are weaker than believed, reports find.

  California public health officials are investigating medical errors at Cedars-Sinai Medical Center in Los Angeles in which 206 patients were exposed to high doses of radiation during CT brain scans.

  Most of the serious proposals to fulfill President Obama’s vow to curb health care costs have fallen victim to organized interests and parochial politics.

  President Obama said he saw an “unprecedented consensusâ€�around plans to overhaul the nation’s health care system, citing Republican former officials.

  Senator Olympia J. Snowe, a Republican whose vote is much prized by Democrats, was orphaned at 9 and widowed at 26.

  Speaker Nancy Pelosi said the idea was to capture some of the profits that insurance companies might reap if the government required nearly everyone to have insurance.

  The announcement came a day after a cost analysis showed the bill meeting President Obama’s requirements.

  Health insurance costs will be higher, and defaulting to your current plan could cost you hundreds of dollars.

  With all the attention on swine flu, supplies of the vaccine for garden-variety seasonal flu have run short.

  The first doses of vaccine for the swine flu began arriving. But fear and confusion about the vaccine are spreading almost as quickly as the virus itself.

  Assurances that swine flu is no more deadly than garden-variety seasonal flu only seem to heighten anxiety.