Potential single-dose smallpox and mpox vaccine moves forward

Published on November 13, 2024

An FDA-approved vaccine for smallpox and mpox is effective but causes side effects. The other requires multiple doses. An experimental single-dose vaccine uses the horsepox virus to harness the benefits of both strategies.

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Current guidelines recommend that pregnant people receive a vaccine against respiratory syncytial virus (RSV) -- which typically causes mild, cold-like symptoms in most adults but can be deadly for infants -- during weeks 32-36 of pregnancy. New research suggests that vaccination earlier in that time-frame, closer to 32 weeks, could provide the best protection for newborns against RSV.

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