Screening Program for Testing & Contact Tracing

• Viral testing (PCR or polymerase chain reaction): PCR is currently the most widely available diagnostic test for COVID-19. It relies on identifying viral genetic material in secretions from the nose, throat or saliva. Yale is currently using anterior nasal self-obtained swabs for asymptomatic and symptomatic screening.
• Antibody testing: Not recommended for diagnostic testing or for proof of immunity at this time.
• Rapid or “point-of-care” testing: Yale is not offering rapid testing outside of the patient care setting.

Test results are generally available 24-36 hours after the sample is obtained. Results are housed in Epic, Yale Health’s electronic health record. Results are released to MyChart, Epic’s patient portal, when finalized by the lab. All of those who are tested through the program must enroll in MyChart to receive results.

Five different results are possible:

• Negative results: Indicate no evidence of Infection at the time of the test. You may have a very low level of virus in your system so this does not rule out that you may become positive on a subsequent test.
• Positive results: Indicate that there was evidence of viral infection at the time the sample was taken. What to expect in the event of a positive test:
  • You will isolate at home or in designated isolation housing if an on-campus student.
  • Yale Health staff will call you to discuss next steps in detail.
  • Supervisors or deans will also be notified in order to provide support and to ensure a review of environmental safety precautions in the workplace or college.
  • You will receive a call from the Yale Contact Tracing Team (YCTT). Contact tracing is an important disease control measure to prevent further spread of COVID-19. This process begins by asking individuals who are diagnosed with COVID-19 about people with whom they had contact while they may have been infectious.
  • Your close contacts will be notified by the YCTT. Your name will not be shared with contacts during the tracing process. Learn more about close contacts on the Yale COVID-19 Contact Tracing Program webpage.
  • Yale Health’s Care Management Team will follow and release you from isolation when appropriate.
• Inconclusive: The test looks for 2 sites on the virus; both must be positive for the test to be considered positive. When only 1 viral site is positive the test is called inconclusive and must be repeated, as it could represent an early positive test. The resulting team will contact you with instructions.
• Invalid: The lab uses human DNA as a control to make sure the sample is adequate. If there is no human DNA in the sample it is labeled as invalid and not processed. In most cases, this indicates a need to be firmer in how you are swabbing the sides of your nose. Schedule a repeat test.
• TNP: This result means Test Not Processed. This can happen for a number of reasons but one of the most common reasons is too much mucous in the sample which most often happens when someone doesn’t blow their nose. Schedule a repeat test.

If you receive an invalid or TNP result you should schedule another test.

We are tracking a number of key Yale, local, and regional data streams to ensure that Yale leadership has the information they need to make critical decisions, and the Yale community has access to local trends. The Yale COVID-19 Data page is updated daily based on data from the asymptomatic testing program as well as symptomatic testing of the Yale Health insured population.