Here’s why it’s taken so long to develop a vaccine for respiratory syncytial virus and what we can expect next.
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The oral polio vaccine – which is no longer given in the US – relies on a live but weakened virus that can actually be passed from person to person.
A challenge in eradicating polio comes from a version of the vaccine itself, which relies on live but attenuated virus. Rationally designing a new vaccine could help get rid of polio once and for all.
