Uncertainty has been the biggest problem in developing an effective vaccine against the variant of H5N1 that’s dangerous to humans.
The agent is a so-called adjuvant that is added to a medicine to strengthen its effectiveness.
In this case, the substance stimulates the immune system and improves the response to the vaccine.
The Erasmus Medical Centre tested the agent on people and on ferrets which, like people, suffer from flu viruses.
Osterhaus explained the results: “The humans appeared to have a relatively broad immune response.
The ferrets were first vaccinated, then exposed to H5N1, and there too we witnessed a demonstrably broad protection against the virus.”
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