Both companies have flu vaccines in development and this has led to increased interest from investors. Novavax experienced a similar thing during a previous bird-flu scare, which took its share price over $10 but this fell considerably once the immediate concern had passed.
Other companies in the sector, such as Sanofi-Aventis, Baxter and Vical, have seen their share prices rise and Roche and GlaxoSmithKline are also likely benefit.



