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A comment on No one who got Moderna's vaccine in trial developed severe Covid-19. Parent comment

Re:No one who got Moderna's vaccine in trial developed sever... by mlindner on Monday November 30, 2020 @02:53PM (#25258112)
Just to clarify, 185 got symptomatic covid. The 185 doesn't include the unknown number of asymptomatic people.
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Re:No one who got Moderna's vaccine in trial developed sever... by shakhahxhcj on Monday November 30, 2020 @03:00PM (#25258203)
I am curious why they didn’t test everyone. Is it just a cost/test capacity thing? Wouldn’t testing to catch asymptomatic cases increase statistical power to allow the study to yield results sooner with smaller error bars? Also, isn’t preventing asymptomatic cases an important function of the vaccine (to get to herd immunity)?
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