An advisory board to the US Food and Drug Administration voted unanimously in favor of the first single-shot covid-19 vaccine, clearing the path for the health agency to authorize its immediate use as soon as tomorrow.
The one-shot vaccine, developed by Johnson & Johnson, has the additional advantage of being easy to store, because it requires nothing colder than ordinary refrigerator temperatures. It stopped 66% of mild and serious covid-19 cases in a trial carried out on three continents.
It will join a US covid arsenal that already includes authorized vaccines from Moderna and Pfizer. Those vaccines, which use messenger RNA, were significantly more effective (they stopped about 95% of cases), but they require two shots, and the doses need to be stored at ultra-cold temperatures.
Globally, a growing list of injections developed in Russia, China, India, and the United Kingdom all are starting to see wide use.
While the … Read the rest...