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Holiday schedule

Quest Diagnostics Patient Service Centers will be closed on Thursday, November 27, 2025 for the Thanksgiving Holiday. All Quest Diagnostics locations will be closing early at 12:00pm on Friday, November 28, 2025. Have a healthy, happy holiday.

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Quest Diagnostics

Infectious disease

Know where you stand

Empower yourself with knowledge for yourself and for the people you care about.

Quest offers a variety of infectious disease test options:

Featured Tests

Quest offers 3 types of COVID-19 tests: active infection, COVID-19 + flu, and antibody.

Find the test for you
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Hep C testing

Knowing is the first step in understanding the potentially life-threatening form of liver disease.

HIV testing

Getting tested for HIV empowers you to do what’s best for your health and the safety of people you care about.

H pylori testing

If you have “heartburn” that lasts or keeps coming back, consider asking your doctor about H pylori testing.

Make an appointment

It's easy to schedule for the time and place that's most convenient for you.

Schedule now

Our company

Quest® is the brand name used for services offered by Quest Diagnostics Incorporated and its affiliated companies. Quest Diagnostics Incorporated and certain affiliates are CLIA-certified laboratories that provide HIPAA-covered services.  Other affiliates operated under the Quest® brand, such as Quest Consumer Inc., do not provide HIPAA-covered services. 

 

Quest®, Quest Diagnostics®, any associated logos, and all associated Quest Diagnostics registered or unregistered trademarks are the property of Quest Diagnostics. All third-party marks—® and ™—are the property of their respective owners. © 2025 Quest Diagnostics Incorporated. All rights reserved. Image content features models and is intended for illustrative purposes only.

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