Symptoma

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).

COVID-19 world map

COVID-19 Accuracy

Sensitivity

96.66%

29 of 30 COVID-19 cases detected

Specificity

96.31%

1,071 of 1,112 cases correctly classified as "low risk" for COVID-19

Accuracy

96.32%

In 1,100 of 1,142 cases prediction was correct

Martin, A., Nateqi, J. et al. bioRxive preprint doi: https://doi.org/10.1101/2020.03.25.008805

COVID-19 Test

COVID-19 chatbot

Enter symptoms, answer questions, and receive a score indicating the COVID-19 risk.

COVID-19 Validation

Validation of Symptoma’s Chatbot for COVID-19
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COVID-19 study

Study validating our accuracy in scoring COVID-19 risk

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

96.66%

29 of 30 COVID-19 cases detected

Specificity

96.31%

1,071 of 1,112 cases correctly classified as "low risk" for COVID-19

Accuracy

96.32%

In 1,100 of 1,142 cases prediction was correct

Martin, A., Nateqi, J. et al. bioRxive preprint doi: https://doi.org/10.1101/2020.03.25.008805

Performance

Symptoma performs better than other approaches

Differentiation of COVID-19 vs non-COVID-19 cases by Symptoma and four other questionaire based approaches (n = 394).

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Discovery Speed and Sensitivity

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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What can you do?

Citizens

Score your COVID-19 risk. Free. Anonymous. Fast. Accurate. Safe. Validated.

Health Authorities

Screen citizens safely online and gather insights to act upon.

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Medical Providers

Screen patients to prioritize your resources.

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Media

Spread the word.

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Webmaster

Integrate our chatbot into your website(s) for free.

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Scientists

Access our anonymous real world database for COVID-19.

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