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UPDATE: Moderna and Pfizer Reveal Secret Blueprints for Coronavirus Vaccine Trials

Two drug companies that are leading the race to develop coronavirus vaccines bowed to public pressure on Thursday, abandoning their traditional secrecy and releasing comprehensive road maps of how they are evaluating their vaccines.

The companies, Moderna and Pfizer, revealed details about how participants are being selected and monitored, the conditions under which the trials could be stopped early if there were problems, and the evidence researchers will use to determine whether people who got the vaccines were protected from Covid-19.

Moderna’s study will involve 30,000 participants, and Pfizer’s 44,000.

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A basic guide to Coronavirus tests

What are the different types of coronavirus tests?

There are three broad categories of coronavirus tests in the U.S. Two diagnose whether you have an active infection, and a third indicates if you previously had the virus.

Here’s how they work:

GENETIC TESTS

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ANALYSIS: Why a vaccine will not stop the Covid-19 pandemic right away

...   while vaccine manufacturers, public health experts and the federal government are all confident one or more of the coronavirus vaccines being tested now will be shown to work safely by the end of the year, the US and the world will still be a long way from ending the pandemic. 

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