MAKING INFLUENZA VIRUS VACCINES WITHOUT USING EGGS

摘要

Disclosed is a process for preparing an antiserum from a non-human animal by administering to the non-human animal a purified influenza virus hemagglutinin from a virus grown in non-human cells. The serum recovered from the non-human animal contains antibodies that recognise hemagglutinin. The non-human animal is a sheep. The hemagglutinin is free from egg derived materials and is from a virus that has never been grown in eggs.