TY - GEN AU - HENNESSY,A V AU - MINUSE,E AU - DAVENPORT,F M TI - A TWENTY-ONE-YEAR EXPERIENCE WITH ANTIGENIC VARIATION AMONG INFLUENZA B VIRUSES SN - 0022-1767 PY - 1996///1201 KW - Antigenic Variation KW - Antigens KW - Hemagglutination Inhibition Tests KW - Humans KW - Immune Sera KW - Influenza B virus KW - Orthomyxoviridae N1 - Publication Type: Journal Article ER -