China Travel Special! Package A and Free Antigen! SPECIAL! First 200 NEW Appt. Book directly through our website, or through your patient portal if you have tested with us before.

There is a new travel policy to China effective on May 20, 2022. Two PCR tests and an Antigen Test are required 1 day before the flight date. Antibody testing will no longer be required. [SF Chinese Consulate Notice]. An Antigen test report is not required when applying the health code. Airlines will inspect the original reports before check-in or boarding. Either printed or electronic original report will be accepted, while the result must be “negative”. TargetDx NAAT RT-PCR Test results are accepted for all international travel and we are a designated lab by the SF Chinese Consulate. We are open Monday to Saturday. We look forward to serving your travel testing needs!  Learn more.

COVID-19 Testing for Work, School, and Events

TargetDx Laboratory offers provides testing for schools, workplace, and special events. We only use tests that are approved by the FDA approved or FDA approved for use under the Emergency Use Authorization (EUA). Contact us at

Do you have an IgM or IgG Response to Your COVID-19 Vaccine?

Have you been vaccinated with the Pfizer, Moderna, or J&J vaccine? Do you want to know if you have an IgM or IgG response? Come take a simple blood test. Our S Protein lateral flow or immunoassay antibody detects antibodies induced from the Pfizer, Moderna, and J&J vaccines. Are you wondering if you have been infected in the past? Take our N Protein antibody test and find out.  Book your appointment.

We Are Here To Serve

We are a full-service High Complexity CLIA laboratory with state-of-the-art equipment and 11,400 sq. ft. of testing capacity. We can provide collection services,  collection kits, process samples in-house with fast turnaround, and handle insurance claims. We work with clinics, schools, continuing care communities, government agencies, and companies across the US to provide COVID-19 viral and antibody tests. If you are interested in partnering with us, email us at

Should I Get a COVID-19 Viral or Antibody Test?

The type of COVID-19 test, viral or antibody, will depend on whether you currently have COVID-19 symptoms. A wide range of symptoms – from mild to severe illness – may appear 2-14 days after exposure to the virus. A PCR test will tell you if you are currently infected with the virus, whereas the antibody test will tell you if you have been infected with the virus or have antibody response to your vaccine.

Reliable & High-Quality

Laboratory Services


COVID-19 Viral Test

The COVID-19 viral test is PCR-based and determines an active SARS-CoV-2 infection. Book your test.


COVID-19 Antibody Test

The COVID-19 antibody tests determines if you had an immune response to a past infection or to a vaccination. Book your test.

Travel Testing

We do travel testing for China and other international and interstate travel (except for Hawaii). Book your test.

EDTA tubes

Respiratory Panel

The Respiratory Panel differentiates whether you have SARS-CoV-2 (COVID-19), Influenza Virus (FLU) or Pneumonia (Human Orthopneumovirus, RSV). Book your test.

X ray of lungs

Lung Cancer Test

The Lung Cancer Detector Test (LCDT1) detects early Lung Cancer. This test is indicated in patients with an indeterminate lung nodule. Smokers may benefit from this test

Antibody action

Cytokine Storm

Cytokine storm panels evaluates inflammatory markers investigated by researchers for development of drugs, vaccines, and treatments; and to study disease progression.