title: Use of a simple, new test for virus-specific IgM to investigate an outbreak of influenza B in a hospitalised aged community.
mesh_terms: D000368:Aged; D000914:Antibodies, Viral / Q000032:analysis*; D004196:Disease Outbreaks; D005260:Female; D006382:Hemadsorption; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D007075:Immunoglobulin M / Q000032:analysis*; D007163:Immunosorbent Techniques; D007251:Influenza, Human / Q000175:diagnosis* / Q000453:epidemiology; D008131:London; D008297:Male; D009975:Orthomyxoviridae / Q000276:immunology*
chemical_list: D000914:Antibodies, Viral; D007075:Immunoglobulin M