![A worker works inside a lab at the SinoVac vaccine factory in Beijing on Thursday, Sept. 24, 2020. SinoVac, one of China's pharmaceutical companies behind a leading COVID-19 vaccine candidate says its vaccine will be ready by early 2021 for distribution worldwide, including the U.S.](https://www.gpb.org/sites/default/files/styles/flexheight/public/2020-09/vaccine_coronavirus_-_ap20268477864134.jpg?itok=Kw111mAz)
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A worker works inside a lab at the SinoVac vaccine factory in Beijing on Thursday, Sept. 24, 2020. SinoVac, one of China's pharmaceutical companies behind a leading COVID-19 vaccine candidate says its vaccine will be ready by early 2021 for distribution worldwide, including the U.S.
Credit: AP Photo/Ng Han Guan