Americans are still debating whether to roll up their sleeves for a swine flu shot, but companies have already figured it out: vaccines are good for business.
Drug companies have sold $1.5 billion worth of swine flu shots, in addition to the $1 billion for seasonal flu they booked earlier this year. These inoculations are part of a much wider and rapidly growing $20 billion global vaccine market.
"The vaccine market is booming," says Bruce Carlson, spokesperson at market research firm...
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