Moderna vaccine confers at least 3 months immunity: study

Washington (AFP) – The Moderna Covid-19 vaccine, which the company says was recently demonstrated to have 94 percent efficacy, causes the human immune system to produce potent antibodies that endure for at least three months, a study showed Thursday. Researchers at the National Institute for Allergies and Infectious Diseases (NIAID), which co-developed the drug, studied the immune response of 34 adult participants, young and old, from the first stage of a clinical trial. Writing in the New England Journal of Medicine, they said that the antibodies, which stop the SARS-CoV-2 virus from invading…

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