41.   Indeed, once flu vaccine is shipped, the CDC does not even have a system to track where the boxes have gone.

42.   Just last week, California lawmakers called for a federal investigation into how flu vaccine is distributed because of concerns that vulnerable people were not immunized first.

43.   Lawmakers from North Dakota and California have called for a federal investigation into how flu vaccine is distributed.

44.   Like oral polio vaccines, the nose-spray flu vaccine is made of live but weakened flu viruses, Piedra said.

45.   Meanwhile, researchers have reported exciting results of studies of a not-yet-licensed flu vaccine administered as a nasal spray.

46.   One small distributor, Dubin Medical Inc. in Santa Barbara, Calif., sent a fax to hospitals on Monday saying it could deliver the flu vaccine on Tuesday.

47.   Recent research has shown that stress can affect everything from the healing of wounds to the effectiveness of flu vaccines.

48.   Researchers said development of a flu vaccine that also provides immunity to parainfluenza and RSV could help keep people out of the hospital.

49.   Responding to complaints, the American Medical Association last week condemned middlemen who are reportedly reselling flu vaccine at prices much higher than those charged by the manufacturers.

50.   Sen. Susan Collins, R-Maine, said Wyeth had fallen far behind the schedule set in its contract for delivering flu vaccine to her state.