UPDATE 2-Chiron delays flu vaccine shipments
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Chiron Corp. is delaying shipment of its flu vaccine, Fluvirin, because lots containing 4 million vaccines, do not meet product sterility standards, the biopharmaceutical company said on Thursday .
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Chiron Corp., which makes nearly half the country&#39;s flu shots, announced Thursday some batches of the Fluvirin flu vaccine made in its England factory were found to be contaminated.
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Chiron (CHIR) said Wednesday that it had written off $91 million in flu vaccine inventory and warned in its most pointed language yet that it may not be able to supply the USA next year either.
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US officials say manufacturer Aventis Pasteur can produce another 2.6 million doses of flu vaccine, but the shipment won&#39;t arrive in America until January.
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British health officials said Friday that US officials were warned in mid-September that ongoing problems at California-based Chiron&#39;s flu vaccine manufacturing plant in Liverpool, England, &quot;could disrupt influenza vaccine supplies to the United States
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This year&#39;s unexpected shortage of flu vaccine was a result of vaccine doses becoming contaminated during production. On October 5th, Chiron Corporation, a California-based biotechnology
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Contamination in a British factory that  supplies flu vaccine to the United States is expected to cause  some delays but no shortage of flu shots this year, federal  health officials said on Friday.
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Biotech and pharmaceutical stocks showed no signs of slowing down Friday afternoon amid news that vaccine maker Chiron Corp. was going deliver its flu vaccine a month late this year because some lots had been contaminated.
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The US government announced Friday that nearly half of this year&#39;s flu vaccine supply will arrive about a month late because some doses may be contaminated.
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(CBS/AP) Expect flu vaccine shortages again this year. Manufacturing problems mean half the US flu vaccine supply -- some 48 million doses -- won&#39;t arrive.
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With federal public health officials scrounging for more influenza vaccine, a drug company announced Tuesday that it would supply an additional 2.6 million flu shots - though the doses will not be available until January.
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The suspension of Chiron Corp.&#39;s license to manufacture vaccines in England - including an influenza vaccine that is a critical part of the United States&#39; protection against flu â-as been continued until early April, British health authorities said
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The company that makes half the nation&#39;s supply, Chiron Corporation, has found four million tainted samples in its factory. It&#39;s postponing shipments of 50 million doses of vaccine until they&#39;re checked for safety.
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BRITISH health authorities suspended the licence of the worldâs second biggest flu-vaccine maker, Chiron, yesterday, raising fears of a shortage this winter.
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Shares of Chiron Corp. (CHIR.O) fell 7 percent before the market open on Friday, a day after the biopharmaceutical company said it is delaying shipment of its flu vaccine, Fluvirin, because lots containing 4 million vaccines do not meet product sterility standards.
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U.K. regulators have extended the  suspension of Chiron Corp.'s influenza vaccine production in  Liverpool, England for another three months from Jan. 4, the  company said on Tuesday.
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Half of the nation&#39;s anticipated supply of flu vaccine disappeared without warning earlier this week after Chiron Corp., the world&#39;s second-largest producer of flu vaccine, announced it won