A key goal in influenza research is the design of a universal flu vaccine that affords protection against multiple viral subtypes. Now, two studies report new vaccination strategies that engineer the stem region of haemagglutinin (HA) glycoprotein to elicit antibodies that protect against multiple influenza subtypes in animal models of infection.
http://www.nature.com/nrmicro/journal/vaop/ncurrent/full/nrmicro3553.html
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