COVID-19 Chatbot Test
Enter symptoms, answer questions, and receive a score indicating the COVID-19 risk as high, medium or low. We take also +20,000 other possible diagnoses into consideration. The test performs at a 96.32% accuracy (see scientific study results below). Our chatbot is certified as medical device.
per Council Directive 93/42/EEC
COVID-19 world map
COVID-19 Accuracy
Sensitivity
29 of 30 COVID-19 cases detected
Specificity
1,071 of 1,112 cases correctly classified as "low risk" for COVID-19
Accuracy
In 1,100 of 1,142 cases prediction was correct
COVID-19 Test
Enter symptoms, answer questions, and receive a score indicating the COVID-19 risk.
COVID-19 Validation
COVID-19 study
An artificial intelligence based first-line defence against COVID-19: digitally screening citizens for risks via a chatbot
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Sensitivity and Specificity
Symptoma correctly classifies 29 of 30 COVID-19 cases as COVID-19 risk (96.6% sensitivity). Of 1,112 British Medical Journal (BMJ) control cases (non-COVID-19), only 41 are classified as potential COVID-19 cases by Symptoma, with only seven of these ranking COVID-19 higher than the correct diagnoses. These seven cases relate to diseases that present similarly to COVID-19, however, have far lower incidence rates and, therefore, are deemed less likely, e.g. Severe Acute Respiratory Syndrome (SARS-CoV) or the Avian influenza A (H5N1) virus infection (bird flu). The results are summarized in the table below.
| n cases | Flagged as COVID-19 risk | Not flagged as COVID-19 risk | |
|---|---|---|---|
| COVID-19 cases | 30 | 29 True Positives | 1 False Negatives |
| BMJ cases | 1,112 | 41 False Positives | 1,071 True Negatives |
COVID-19 Accuracy
Sensitivity
29 of 30 COVID-19 cases detected
Specificity
1,071 of 1,112 cases correctly classified as "low risk" for COVID-19
Accuracy
In 1,100 of 1,142 cases prediction was correct
Performance
Differentiation of COVID-19 vs non-COVID-19 cases by Symptoma and four other questionaire based approaches (n = 394).
More Details →Discovery Speed and Sensitivity
Identification of COVID-19 cases with regards to the number of query terms entered. On the x-axis, the search rank of the query in Symptoma is given against the y-axis where each panel considers a different number of symptoms in the query. Only reported COVID-19 symptoms are considered. Points are jittered vertically for clarity only.
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