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‘This gives hope’: A third COVID-19 vaccine dose can boost protection for organ transplant recipients
Jennifer Couzin-FrankelScience’s COVID-19 reporting is supported by the Heising-Simons Foundation.A few months ago, transplant surgeon Dorry Segev was despondent about how COVID-19 vaccines were performing in patients like his, who have a donated organ and take powerful drugs to suppress their immune system. After one dose of a highly effective messenger RNA (mRNA) vaccine, for example, just 17% of those patients churned out protective antibodies against the pandemic coronavirus, and after the standard two doses, only 54% did.