For over a year, Westgard QC has provided free articles on method validation, laboratory testing and QC that are helpful to methods in use to detect COVID19 and SARS-CoV-2. Also included are lab stories from around the world.

The Facts, The Challenges, The Crisis:

• This is not a Test https://www.westgard.com/covid19-this-is-not-a-test.htm
• Sprinting into a marathon: https://www.westgard.com/covid-19-marathon.htm
• Serology Selection Shortlist (no longer supported): https://www.westgard.com/serology-eua-shortlist.htm
• Key Facts in COVID-19: https://www.westgard.com/covid-19-test-test-test.htm
• Maintaining Quality in a Crisis: https://www.westgard.com/covid-19-maintaining-quality.htm
• COVID19 in '21: Are we there yet? https://www.westgard.com/covid19-there-yet.htm

 The Tools:

• Clinical Agreement for Qualitative Testing: https://www.westgard.com/qualitative-test-clinical-agreement.htm
• Clinical Agreement Calculator: http://tools.westgard.com/two-by-two-contingency.shtml
• Prevalence and Predictive Value: https://www.westgard.com/predictive-value.htm
• Predictive Value calculator: http://tools.westgard.com/predictive.shtml
• Probit Analysis, Part 1: https://www.westgard.com/probit-part-one.htm
• Probit Analysis, Part 2: https://www.westgard.com/probit-part-two.htm
• Secrets of Screening Assays QC: https://www.westgard.com/secrets-screening-qc.htm

Tales from the Labs: Front Line Stories of the Pandemic:

• In the Center of the (US) Storm, Northwell, NY, and COVID19: https://www.westgard.com/covid-19-interview-sam-reichberg.htm
• Second City, First Wave. Chicago's RUSH hospital and COVID19: https://www.westgard.com/covid-19-interview-nicholas-moore.htm
• Multicare Health System: An 8-hospital system faces the virus in Washington State: https://www.westgard.com/covid-19-interview-multicare.htm
• Three Waves of Virus at Winchester Medical Center: https://www.westgard.com/3-waves-winchester-covid19.htm
• The View from St. Petersburg, A Russian experience: https://www.westgard.com/helix-labs-covid19.htm
• Cedars-Sinai and the Early Wave of COVID19: https://www.westgard.com/covid-19-interview-kimia-sobhani.htm

 QC for SARS-COV-2

• A Downside to Negative Controls for SARS-COV-2 testing? https://www.westgard.com/covid19-negative-control-qc-challenges.htm