2009-11-11 Vaccine Shortage a Concern in Fight Against H1N1
This is the VOA Special English Health Report. H1N1 flu continues to spread. Currently the virus is most active in the northern half of the world. But experts say it…
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This is the VOA Special English Health Report. H1N1 flu continues to spread. Currently the virus is most active in the northern half of the world. But experts say it…