Nanoparticle flu vaccine protects against three influenza strains in mice
A new nanoparticle vaccine could one day give patients immunity to the flu with fewer trips to the doctor and without requiring health officials to correctly guess which flu strains will become dominant each year.
Scientists at the University of Michigan have developed a nanoparticle vaccine that offers protection against three different strains of the flu in mice. The vaccine, created by targeting the M2 protein—a component that mutates less frequently than the main flu protein—could potentially provide broader immunity without the need for annual updates.
Current flu vaccines must include multiple strains, and even then, their effectiveness ranges from 30% to 60%. The new vaccine, produced using yeast to create virus-like particles coated in M2 protein, could be manufactured more quickly, potentially within a month compared to the six-month process for traditional vaccines. The researchers, led by Fei Wen and Trang Hoang, aim to develop a vaccine that could provide lifelong protection with a single shot.
However, further studies are needed to determine the vaccine's long-term effectiveness and safety in humans.
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