WASHINGTON -- The Food and Drug Administration is unlikely to clear influenza vaccine made by
It was unclear whether the lack of vaccine might lead to more flu deaths this year. Crawford and Dr. Julie Gerberding, head of the Centers for Disease Control and Prevention, sidestepped such questions at a House Government Reform Committee hearing. In a typical year, an estimated 36,000 Americans die of the flu.
Dr. Jim Young, the president of
The CDC was asking healthy adults to forgo flu shots or to use MedImmune's FluMist if they are within the 5- to 49-year-old age range for that product, Gerberding testified. But as she spoke, Young later testified, the National Institutes of Health was advising employees in its hospitals not to take FluMist.
''The agencies are putting out mixed messages," Young said.
Crawford's pessimism about the Chiron vaccine came as FDA officials in England met with Chiron officials and were poised to begin an in-depth inspection of the company's Liverpool vaccine production facility today and tomorrow.
Asked if the FDA was likely to coax free 40 million impounded doses of flu vaccine that Chiron testing indicated were free of contamination with bacteria, Crawford said, ''It's not possible to say if any of them are salvageable at this point. I have to present to you a pessimistic point of view."
Crawford said afterward that the FDA probably would have made the same decision its British counterparts did: suspending Chiron's vaccine production and exports due to manufacturing problems. The decision, announced Tuesday, halved the US flu vaccine supply.
Chiron had alerted all regulators Aug. 25 that it had detected eight lots of flu vaccine contaminated with a bacteria that can grow in vaccine and, in vulnerable humans, can cause urinary tract infections. US officials expected that would mean as little as a 10 percent drop in this year's flu vaccine supply, or 4 million to 8 million doses.
The British version of the FDA met with Chiron last week. Meetings Monday in England continued well into the night, Crawford testified, leading to Tuesday morning's announcement.
Gerberding told the House hearing that the head of Chiron awakened her Tuesday to alert her to the British license suspension. The FDA's weekly conference call with Chiron, covering the company's final report on the contamination, was due to happen later Tuesday.
US health officials were stunned by the British action, since the FDA's monitoring had suggested most of Chiron's vaccine would be fine. By yesterday, Crawford was saying, ''We would have probably made the same decision."
Much of yesterday's discussion underscored the frailty of the nation's supply of indispensable vaccine and the scant number of manufacturers producing it.
Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, said manufacturers can make higher profits with blockbuster drugs that patients take regularly. He said a year's supply of Lipitor costs $1,608 vs. $3,500 for Viagra. The price of a year's supply of flu vaccine: $7 to $10.
''We need to help with incentives," Fauci told the committee.
Christine Grant of Aventis Pasteur, which is supplying 55.4 million doses of flu vaccine for Americans this year, cautioned against the government taking over vaccine manufacturing. Grant feared a government-controlled operation would be an unfair competitor. Government takeover ''is the quickest way to chill private investment," she said later.
MedImmune's Young told the panel that it invested $1 billion in FluMist, and it destroyed 4 million unused doses last year and scaled back production to 2 million doses this flu season.
''How much bigger does this problem need to become?" Young testified. ''How many more hearings, analyses, consultants, discussion, and testimonies must there be before any action is taken?"