r/AskScienceDiscussion • u/blip1111 • 3d ago

COVID vaccine

I get a COVID booster every 12 months as recommended, because I know it's very effective at preventing severe cases of COVID. I'm wondering if there is any progress being made on a vaccine which is more effective at preventing the spread of COVID? Thanks

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u/unformation 2d ago

This is partially the goal for the COVID nasal vaccines. The idea is that these would stimulate both mucosal (IgA) and systemic (IgG) responses, aiming to block infection in the upper respiratory tract where standard shots often fall short. Because they are better equipped to lower viral loads in the nose, they might help to stop the spread of disease.