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A blanket requirement for placebo-controlled trials threatens research ethics and vaccine access, it’s being argued.A blanket requirement for placebo-controlled trials threatens research ethics and vaccine access, it’s being argued.
The potential change outlined in a statement says all new vaccines will be required to undergo placebo testing, a procedure in which some people receive the vaccine and others receive an inert ...
The agency suggested that clinical trials in humans may be required for updated Covid shots, raising questions about whether ...
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