The present invention relates to binding molecules, such as human monoclonal antibodies, that bind to hemagglutinin of influenza B viruses, and have a broad neutralizing activity against such influenza viruses. The binding molecules do not bind to hemagglutinin of influenza A viruses. The invention further provides nucleic acid molecules encoding the binding molecules, and compositions comprising the binding molecules. The binding molecules can be used in the diagnosis, prophylaxis and/or treatment of influenza B viruses.本發明係關於結合B型流感病毒之血球凝集素且具有抗此等流感病毒之寬泛中和活性之結合分子，例如人類單株抗體。該等結合分子不結合A型流感病毒之血球凝集素。本發明進一步提供編碼該等結合分子之核酸分子及包含該等結合分子之組合物。該等結合分子可用於診斷、預防及/或治療B型流感病毒。
