New Adjuvant Added to Injectable Polio Vaccine to Improve Transmission Blocking

Researchers have identified a new vaccine adjuvant that may improve the effectiveness of injectable polio vaccines in blocking the transmission of the virus. While the injectable vaccine currently used in the United States successfully prevents individual illness, it remains less effective at stopping the spread of the virus compared to the oral polio vaccine.

The injectable vaccine, known as the inactivated poliovirus vaccine, provides strong immunity for the recipient but does not always prevent the virus from replicating in the gut and spreading to others. By incorporating this new adjuvant, scientists aim to enhance the immune response to better mirror the transmission-blocking capabilities of the oral version. This development addresses a long-standing challenge in global eradication efforts, as health officials seek to maintain high levels of individual protection while simultaneously reducing the risk of community-wide outbreaks.

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Source: GO-AI-ne1

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Date: June 3, 2026

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GOAI