After weeks of round-the-clock research at the National Institutes of Health, it was time for a key test. If the vaccine revs up the immune system, the samples in that dish -- blood drawn from immunized mice -- would change color.
Minutes ticked by, and finally they started glowing blue.
“Especially at moments like this, everyone crowds around,” said Kizzmekia Corbett, an NIH research fellow leading the vaccine development. When her team sent word of the positive results, “it was absolutely amazing.”
Dozens of research groups around the world are racing to create a vaccine as COVID-19 cases continue to grow. Importantly, they’re pursuing different types of vaccines — shots developed from new technologies that not only are faster to make than traditional inoculations but might prove more potent. Some researchers even aim for temporary vaccines, such as shots that might guard people’s health a month or two at a time while longer-lasting protection is developed.
“Until we test them in humans we have absolutely no idea what the immune response will be,” cautioned vaccine expert Dr. Judith O’Donnell, infectious disease chief at Penn Presbyterian Medical Center. “Having a lot of different vaccines -- with a lot of different theories behind the science of generating immunity -- all on a parallel track really ultimately gives us the best chance of getting something successful.”
First-step testing in small numbers of young, healthy volunteers is set to start soon. There’s no chance participants could get infected from the shots, because they don’t contain the virus itself. The goal is purely to check that the vaccines show no worrisome side effects, setting the stage for larger tests of whether they protect.
この記事は AppleMagazine の March 13, 2020 版に掲載されています。
7 日間の Magzter GOLD 無料トライアルを開始して、何千もの厳選されたプレミアム ストーリー、8,500 以上の雑誌や新聞にアクセスしてください。
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この記事は AppleMagazine の March 13, 2020 版に掲載されています。
7 日間の Magzter GOLD 無料トライアルを開始して、何千もの厳選されたプレミアム ストーリー、8,500 以上の雑誌や新聞にアクセスしてください。
すでに購読者です? サインイン
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