During the H1N1 influenza pandemic 2009–2010 in Sweden, a mass-vaccination intervention was enacted as a precautionary measure. Half a year later, medical authorities reported an increased incidenc ... Click to show full abstract
During the H1N1 influenza pandemic 2009–2010 in Sweden, a mass-vaccination intervention was enacted as a precautionary measure. Half a year later, medical authorities reported an increased incidenc ...
               
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