Takeda's new dengue vaccine QDENGA just got approved in India. With dengue cases going crazy every year, is this actually gonna make a real difference? Should people be lining up to get it? How effective is it really?
The biggest practical thing is that this vaccine works against all four dengue types, which is genuinely useful since you can get reinfected with a different strain - previous vaccines had limitations there.
It's definitely a meaningful tool for reducing cases, though it's not a magic bullet; effectiveness sits in the 80-90% range depending on which dengue type, and uptake will depend on rollout speed, cost, and whether people can actually access it in their areas.
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