[Wired] The US Has 3 Covid Vaccines—Testing New Ones Is Complicated - Printable Version +- www.chinaphonearena.com (https://www.chinaphonearena.com/forum) +-- Forum: Off The Wall (https://www.chinaphonearena.com/forum/Forum-Off-The-Wall) +--- Forum: Tech & Science (https://www.chinaphonearena.com/forum/Forum-Tech-Science) +--- Thread: [Wired] The US Has 3 Covid Vaccines—Testing New Ones Is Complicated (/Thread-Wired-The-US-Has-3-Covid-Vaccines%E2%80%94Testing-New-Ones-Is-Complicated)

[Wired] The US Has 3 Covid Vaccines—Testing New Ones Is Complicated - Wired Magazine - 2021-03-19 The US Has 3 Covid Vaccines—Testing New Ones Is Complicated Now that authorized versions are available, it’s tough to recruit volunteers for trials that might give them a placebo. But there are other options. https://www.wired.com/story/the-us-has-3-covid-vaccines-testing-new-ones-is-complicated