Semi-purified cell culture lysate with a high titre of native influenza B particles. 

Influenza virus is a single stranded RNA virus, with a segmented genome. Virus particles are 70-120 nm diameter, and enveloped. It causes an acute viral disease of the upper respiratory tract characterized by fever, chills, headache, myalgia, weakness, runny nose and mild sore throat; cough can be severe; nausea and vomiting are uncommon; fatality is generally low, except in those with chronic lung or heart conditions.

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Inactivation & Safety — Each lot of antigen is inactivated using gamma radiation and this inactivation verified using a sensitive tissue culture based infectivity assay.

Applications — Positive control for antigen detection, Antibody detection (ELISA).