Be proACTive.
Take ACTion.
Make an impACT
in your community.

Be proACTive.
Take ACTion.
Make an
impACT in your
community.

ACT against COVID-19

ACT against
COVID-19

Testing will continue to play an important role in helping to fight against COVID-19 even as vaccination numbers grow. We need comprehensive testing to help curb the spread of variants, safeguard the unvaccinated, and support ongoing wellness. Testing can also help manage the harm caused by “long haul” COVID-19 conditions and uncover hidden pandemics caused by delayed care and healthcare disparities.

Quest Diagnostics started ACT (the Alliance for Comprehensive Testing) with a diverse coalition of nonprofit, community, and business organizations. We are committed to educating the public on the value of comprehensive testing for the good of public health now and in the future.

COVID-19 Testing 101

Testing for SARS-CoV-2 (COVID-19) is more than looking for a “positive” or “negative” result. Learn about the different methods of testing that help combat COVID-19.
Get the facts on testing

Dive deeper into the role of each test.

Which COVID-19 test is right for your needs?

Use our Right Test Right Time Tool to find out.

Join the Alliance

It’s time to promote the value of a comprehensive testing strategy—for today and tomorrow.

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Post-COVID Syndrome White Paper

Use this in-depth analysis to understand the long-term health effects caused by post-COVID syndrome.

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White Paper

Dive deeper into the specific characteristics and uses of each testing method: PCR, antigen, and antibody.

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Testing Brief

Get the basics in a quick and handy summary of SARS-CoV-2 (COVID-19) testing methods.

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Hidden Pandemics

Read more about how significant health issues disproporationaley affect communities of color and vulnerable populations.

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Back to School Protocol

Use this guide to help students and faculty return to school in a responsible way.

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Back to Work Protocol

Help employees return responsibly by implementing these COVID-19 testing protocols.

In the news

Take Action

Interested in joining the Alliance? Become a member and commit to the ongoing health of our communities.

Use the Right Test at the Right Time

ACT Tool Form

Use the Right Test at the Right Time

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Antibody testing determines the presence of antibodies that recognize markers of SARS-CoV-2, the virus that causes COVID-19, indicating that the body previously had been infected. In many diseases, the presence of antibodies confers immunity, but scientists have not verified if this is true for COVID-19. See the glossary section of our website to learn about the difference between Nucleocapsid Protein Antibody Tests and Spike Protein Antibody Tests.

PCR testing is used to accurately detect active infections. It is a type of molecular test and considered the gold standard for testing. PCR is the most commonly used nucleic acid amplification test (NAAT).

Antigen testing is used to identify active infections. It expands testing capacity as a fast, reliable, and affordable screening and diagnostic option.