?:authorAffiliation
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[\'4th Department of Infectious Diseases, Provincial Hospital for Infectious Diseases, 01-201 Warsaw, Poland.\', \'Department of Epidemiology and Tropical Medicine, Military Institute of Medicine, 04-141 Warsaw, Poland.\', \'Department of Tropical Medicine and Epidemiology, Institute of Maritime and Tropical Medicine, Medical University of GdaĆsk, 81-519 Gdynia, Poland.\']
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