Weissman and Karikó are honored for engineering modified RNA technology which enabled rapid development of effective COVID-19 vaccines It was a scientific discovery 16 years ago that paved the way for creation of lifesaving vaccines when the COVID-19 pandemic spread across the globe in 2020. Now, the two Penn Medicine researchers behind the findings are again being recognized for their innovative and monumental work, which has ushered in a new era of vaccine technology. Drew

Pharmaceutical companies that produce COVID-19 vaccines have been quick to announce that people will likely need a booster shot to maintain their immune response to the virus and its variants. Pfizer Chief Executive Albert Bourla has said people will “likely” need one every 12 months, similar to an annual flu shot. Meanwhile, Moderna CEO Stephane Bancel wants to produce a vaccine targeting the variant of COVID-19 first detected in South Africa, and expects regular boosters w

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(CNN)Clinical trial results of Pfizer/BioNTech's Covid-19 vaccine showed its efficacy is 100% and it is well tolerated in youths ages 12 to 15, the companies said Wednesday. Pfizer/BioNTech plan to submit the data to the US Food and Drug Administration as soon as possible for expanded emergency use authorization of the two-dose vaccine. In a Phase 3 trial of 2,260 participants ages 12 to 15 in the US, the vaccine elicited strong antibody responses one month after the second d