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A COVID-19 vaccine may come without a needle

A fictional covid-19 nasal vaccine vial. The vial is created for photography purpose only. Source: iStockphoto / Getty Images

Many vaccines available in the world are administered with a needle, but this isn’t the only way. For example, certain vaccines can be delivered orally, as a drop on the tongue, or via a jet-like device. Scientists are developing COVID-19 vaccine which can be administered without needles. R.Sathyanathan, a leading broadcaster, explains the story. Produced by RaySel.

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