Source:
APGovernment Study Finds One Size Doesn't Have To Fit All
POSTED: 4:04 pm EST December 8, 2008
UPDATED: 4:18 pm EST December 8, 2008
CHICAGO -- Half-dose flu shots are effective in adults, especially in women and those younger than 50, and offer a viable way to stretch supplies during vaccine shortages, a government study found.
The strategy also might be an option during hard economic times since lower doses likely would mean cheaper shots, said Vanderbilt University vaccine expert Dr. Kathryn Edwards, who wasn't involved in the study. And the lower dosage could open doors to vaccinating people in poor countries where flu shots are little used, she said.
Even so, Edwards said giving half-dose flu shots isn't ready for prime time. It's still experimental and hasn't been approved by federal authorities.
The study involved 1,114 adults aged 18 to 64. It's the first to test half-dose flu shots in those aged 50 and older during a single flu season, 2004-05. The results among younger adults echo previous research, said lead author Dr. Renata Engler of Walter Reed Army Medical Center.
The government-funded study appears in Monday's Archives of Internal Medicine.
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