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    Home / News / World News / US expert offers an optimistic timeline for coronavirus vaccine
    US expert offers an optimistic timeline for coronavirus vaccine
    World

    US expert offers an optimistic timeline for coronavirus vaccine

    Written by Shubham Sharma
    June 04, 2020 | 09:06 pm 3 min read
    US expert offers an optimistic timeline for coronavirus vaccine

    As companies race to develop and test COVID-19 vaccines, Dr. Anthony Fauci, the Director of America's National Institute of Allergy and Infectious Diseases (NIAID), has shared an optimistic timeline for their availability. According to him, given the current progress, we are looking at about 200 million doses of COVID-19 vaccines by 2021. Here's more on what he said.

    At least 4-5 vaccines in trials, Moderna leading the way

    In an interview with the Editor-in-Chief of the Journal of the American Medical Association (JAMA), Dr. Fauci spoke on the situation of vaccine development. He said, currently, at least 4-5 candidate vaccines are moving through or towards clinical trials, with Moderna Therapeutics' mRNA-1273, which has been developed at the National Institutes of Health (NIH) and Vaccine Research Center, leading the way.

    Phase 3 trials involving 30,000 individuals to begin in July

    Dr. Fauci noted that the candidate vaccine from Moderna has already cleared Phase-1 clinical trials and is moving through Phase-2. In July, he added, the candidate would go into the final phase, which will be a randomized placebo-controlled test involving 30,000 individuals from around the world. It will be aimed at generating as much data as possible on the efficacy, safety of the vaccine.

    Then, other candidates will also follow

    After the beginning of Moderna's Phase-3, or possibly even simultaneously, other candidates will be moving through advanced stages of trials, Dr. Fauci said. "The AstraZeneca candidate developed in the UK, the one from Oxford, that's going to be very closely aligned," he said, adding that "some other studies are also going to start...as you get towards the end of the summer."

    Cautiously optimistic that a vaccine will be prepared

    On the basis of the situation of candidate trials he is aware of, Dr. Fauci said, he is "cautiously optimistic" that the world is going to have a "vaccine that shows a degree of efficacy which would make it deployable." However, he emphasized that he is more concerned about the duration of the vaccine's response rather than if there will be any protective response.

    Why duration of response is a point of concern

    Per Dr. Fauci, response longevity is a point of concern because the duration of protection upon recovery from the most benign coronaviruses has just been around 1-2 years, as opposed to other infections that are associated with at least 15-20 years of protection.

    200 million doses by 2021

    That said, Dr. Fauci clarified that they will "start manufacturing doses of the vaccines way before we even know that the vaccine works." "We may know whether it's efficacious or not by maybe November-December...[and] by that time, we hopefully would have close to 100 million doses. And by the beginning of 2021, we hope to have a couple of hundred million doses," he stated.

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