Two major U.S. pharmaceutical companies racing to develop novel coronavirus vaccines have announced that their vaccines have been confirmed to be over 90% effective. But Masayuki Miyasaka, a leading immunologist at Osaka University, told the Mainichi Shimbun in a recent interview that even after these vaccines become available, he does not plan to receive them for the time being.
At a meeting of the Committee on Health, Labor and Welfare of Japan’s House of Representatives on Nov. 17, Miyasaka stated, “There’s no doubt that their effectiveness is quite high, but their safety is not guaranteed at all,” sounding a word of caution about expectations for the vaccines.
https://mainichi.jp/english/articles/20201120/p2a/00m/0na/008000c