“According to researchers, a new experimental bird flu (avian flu) vaccine protects 54% of people who get two shots at a very high dose (90 micrograms). This dose is twelve times higher than that needed for protection from normal human flu.
You can read about this research in the New England Journal of Medicine (NEJM).
451 volunteers took part in this trial.
70% of those who got the shot had some kind of immune response, however, it was not possible to know how protective this response might be, said the researchers”