?:authorAffiliation
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[\'Division of Virology, National Institute for Biological Standards and Control (NIBSC), Potters Bar, Hertfordshire EN6 3QG, UK.\', \'Respiratory Virology & Polio Reference Service, Public Health England, London NW9 5EQ, UK.\', \'Division of Analytical and Biological Sciences, NIBSC, Potters Bar, Hertfordshire EN6 3QG, UK.\']
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