Persons Under Investigation (PUIs) & Specimen Collection and Testing Resources COVID-19



Health care personnel should immediately notify both infection control personnel at their health care facility and their local or state health department in the event of a PUI.

Interim Criteria to Guide Testing of Persons Under Investigation (PUIs) for Coronavirus Disease 2019 (COVID-19) (DSHS)

Phone Advice Line Tool for Possible COVID-19 Patients (CDC)

DSHS COVID-19 Testing Algorithm (DSHS)

Evaluating and Reporting PUI Guidance (CDC)

Information for Health Departments on Reporting a PUI or Presumptive Positive and Laboratory-Confirmed Cases of COVID-19

Stigma Related to COVID-19 (Share Facts, Not Fear) (CDC)

Interim Guidance for Public Health Personnel Evaluating Persons Under Investigation (PUIs) and Asymptomatic Close Contacts of Confirmed Cases at Their Home or Non-Home Residential Settings (CDC)

Health Care Professional Preparedness Checklist For Transport and Arrival of Patients With Confirmed or Possible COVID-19 (CDC)

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Specimen Collection and Testing

COVID-19 is a notifiable condition that should be reported to your local health department immediately if either suspected or confirmed. Testing and specimen submission to the DSHS laboratory requires pre-approval from your local health authority. Commercial and drive through laboratory testing is also available. Please consider these as testing options for yourself and your patients due to their larger capacity to test compared to public health laboratories.

How to Obtain a Nasopharyngeal Swab Specimen (NEJM) under Specimen Collection and Testing

COVID-19 Antibody Testing Primer (IDSA)

Emergency Use Authorization (FDA)

PCR vs. Serology Testing, Explained (DSHS)

FAQs on COVID-19 Testing at Laboratories (CDC)

FAQs on Diagnostic Testing for SARS-CoV-2 (FDA)

Interim Guidelines for Collecting, Handling, and Testing Clinical Specimens from Persons Under Investigation (PUIs) for Coronavirus Disease 2019 (COVID-19) (CDC) 

COVID-19 Texas Laboratory Testing Requirements (Information collected by Texas Medical Association) 

New CPT code for COVID-19 testing: What you should know (AMA) 

Laboratory Testing Fact Sheet for Health Care Professionals (FDA)  

Laboratory Testing Fact Sheet for Patients (CDC) 

COVID-19 Specimen Collection and Submission Instructions (DSHS)

FAQs for Diagnostic Tools and Virus (CDC)


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Clinical Care COVID-19 Resources

Infection Control and Personal Protective Equipment (PPE) COVID-19 Resources

Specialty Physicians COVID-19 Resources

Practice Help COVID-19 Resources

COVID-19 Resources main page

Last Updated On

November 13, 2020

Originally Published On

March 17, 2020

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