If you’re experiencing a life- or limb-threatening emergency, call 911 or the number for your local emergency service. This tool is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a medical professional for serious symptoms or emergencies.

We do not collect any of the data you are providing on the test.

"This online COVID-19 prescreening tool can greatly assist doctors and patients assess who are most at risk. Our goal is to optimize the use of limited tests and time to help SAVE LIVES."

Sajung & Sijung are twin brothers, currently co-teaching "Bioinformatics: Tools for Genome Analysis" at Johns Hopkins University and are among the top experts in the world in DNA & RNA analytics fields.

RNA analytics is being taught to their graduate school students and as COVID-19, a RNA virus is emerging, they developed a bioinformatics tool to prescreen for COVID-19 to help prioritize testing decisions for higher risk patients.

This prescreen tool is not intended to focus on determining who has COVID-19. Rather, it is designed to save lives by identifying the symptoms for higher risk individuals to get tested sooner. The more symptoms resembling COVID-19 phenotypic presentations, the more likely the recommendation to seek medical attention for testing.

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The six major symptoms of COVID-19 are: fever, dry cough, fatigue, no appetite, sputum, and muscle or bone pain.

​The five minor symptoms of COVID-19 are: sore throat, chills, headache or dizziness, nausea, vomiting, diarrhea, or stomachache, and loss of smell or taste.

Four "life-threatening emergency complication indicators" associated with COVID-19 are: difficulty breathing, chest pain or chest pressure or irregular heartbeat, bluish lips or face, and confusion.

They were added to the algorithm because COVID-19 patients are most at risk of dying from these complications. If a person shows these symptoms, the algorithm immediately identifies this person as a Priority to get tested.

Two risk adjusting factors were added.

This algorithm accounts for high-risk people such as the elderly who are at greater risk than healthy young adults and for pre-existing COVID-19 related chronic conditions, such as hypertension, respiratory disease, heart disease, diabetes or immunocompromised individuals.

​Currently, COVID-19 testing capacities are very limited. By delaying the testing of low-risk Common Cold patients (similar symptoms to COVID-19), many more of the high-risk patients have access to the limited COVID-19 testing. By shortening the test wait time and starting the treatment sooner, more lives could be saved.

Daily, there are two million patients in the U.S and 51 million people globally suffering from the common cold. It is our intent to also provide those individuals this carefully designed bioinformatics guideline tool for a sense of relief that they are most likely not suffering from COVID-19.