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Covid-19 Symptom Mapper Results

Last updated 06 May 2020

Background

Your.MD and Imperial College of Science Technology and Medicine have launched the Covid-19 Symptom Mapper with the aim to collect self-reported population data from people who have either tested positive to Coronavirus or believe to have compatible symptoms but have not been tested.

The objective of the study is to collect enough data from each country to help researchers better understand how the virus affects people who do not require to be hospitalized.

Please note that all the data are anonymised and we intend to make it available to the wider scientific community. If you decide to leave your email for future communications, please note that it is not stored with your data.

Data Set

As of May 6, 2020 the total sample size consists of 60,812 responses. We have excluded all records from people who declare that they do not believe they are currently infected with Coronavirus. The size of the valid sample is 19,239 responses.

Key Points

  • Most common symptoms
    • Cough is not amongst the 3 most common symptoms in the UK. Fatigue (76.2%), headache (60.5%) and muscle ache (61.2%) were the most common (least people reported no symptoms).
    • Common symptoms globally are: Cough (52.2%), Fatigue (54.2%) and sore throat (49.8%)
  • UK variance to global distribution
    • In the UK, a lot more people have reported fatigue and headaches muscle aches compared to global – see stats above.
    • In the UK, more people have reported moderate disease and less have reported mild disease compared to globally (12.0% globally vs 23.8% in the UK).
  • Differences in age
    • More over 60s have reported moderate fatigue (21.5% vs 14.2%).
    • Loss of smell seems more common in over 60s compared to under 60s (20.8% vs 15.6%).
    • Over 60s report less sore throat than under 60s (43.0% vs 50.4%).
    • More moderate disease in over 60s (17.5% vs 11.6%).
  • Gender variation
    • Men are less affected by chills (16.2% vs 22.0%).
    • Women are more affected by fatigue (50.4% vs 58.7%).
    • Women are more affected by headaches (35.2% vs 48.3%).
    • Women are less affected by nasal congestion (36.8% vs 32.9%).
    • Women are less likely to have a temperature (22.9% vs 19.4%).
  • Other country facts
    • India seems to be less affected by diarrhoea (91.0% don’t report diarrhoea).
    • India seems less affected by loss of smell and taste (90.6% don’t report loss of smell and taste).
    • Philippines reported more mild cases (91.1%) compared to the global (84.9%).

Results

These results are updated on a regular basis.

Severity

The table below shows the percentage of people that have mild, moderate or severe COVID-19. All data are self-reported

Mild Moderate Severe
84.9% 12.0% 1.4%

Gender

The table below shows the gender split of participants across the top 9 countries.

Country Male Female Other
India 65.9% 33.8% 0.3%
Phillipines 47.1% 52.6% 0.4%
United Kingdom 23.0% 76.7% 0.2%
Pakistan 71.5% 28.5% 0.1%
Nigeria 62.6% 37.3% 0.1%
Bangladesh 79.9% 19.9% 0.1%
United States of America 36.2% 63.1% 0.7%
South Africa 34.7% 64.9% 0.4%
Guyana 21.9% 77.6% 0.5%

Age

The table below shows the age distribution of participants.

Under 60 Over 60
92.4% 7.6%

How Unwell

The table below shows the percentage of people that reported how unwell they felt on a scale from 1 to 10.

Scale Percentage
1 7.0%
2 13.0%
3 12.0%
4 9.0%
5 10.0%
6 40.0%
7 4.0%
8 3.0%
9 1.0%
10 1.0%

Symptoms

The table below shows the % of users who have reported any of the symptoms from the mapper compared to a study based on hospitalised patients in Wuhan, China.

Symptom % Mapper % Study
Persistent cough 52% 68% 
Fever between 37.5 to 38°C 17% 22% 
Fever higher than 38°C 4% 22% 
Fatigue / Tiredness 54% 38% 
Coughing up mucus (sputum) 39% 34% 
Shortness of breath 33% 19% 
Muscle aches 44% 15% 
Sore throat 49% 14% 
Headache 41% 14% 
Chills 19% 12% 
Blocked nose 35% 5% 
Vomiting 7% 5% 
Diarrhoea 15% 5% 
Loss of smell and taste 16% N/A 

Breakdown by category

The section below shows a breakdown of the severity of each symptom by age, gender and country.

COVID-19 Severity ⓘ
Mild Moderate Severe
Under 60 84.9% 12% 1.5%
60+ 80.6% 16.8% 0.9%
Cough ⓘ
Mild Moderate Severe
Under 60 51.7% 42.9% 8.1% 0.8%
60+ 58.2% 44.2% 12.3% 1.7%
Temperature ⓘ
37.5 - 38°C 38.1 - 39°C 39.1 - 41°C
Under 60 21.4% 17.9% 3.0% 0.5%
60+ 21.1% 15.6% 3.7% 0.8%
Fatigue ⓘ
Mild Moderate Severe
Under 60 53.5% 37.1% 14.2% 2.2%
60+ 63.4% 37.9% 21.5% 4.0%
Coughing up mucus (sputum) ⓘ
Mild Moderate Severe
Under 60 38.6% 33.1% 4.0% 1.6%
60+ 45.6% 36.6% 6.3% 2.4%
Shortness of breath ⓘ
Mild Moderate Severe
Under 60 33.2% 26.6% 6.2% 0.4%
60+ 36.5% 29.7% 5.9% 0.9%
Muscle aches ⓘ
Mild Moderate Severe
Under 60 44.1% 31.4% 11.0% 1.6%
60+ 50.3% 34.7% 13.2% 2.3%
Sore throat ⓘ
Mild Moderate Severe
Under 60 50.4% 36.3% 12.2% 1.8%
60+ 43.0% 32.5% 8.7% 1.7%
Headache ⓘ
Mild Moderate Severe
Under 60 41.0% 29.1% 9.9% 2.0%
60+ 43.2% 30.1% 11.6% 1.4%
Chills ⓘ
Mild Moderate Severe
Under 60 18.2% 14.1% 3.6% 0.5%
60+ 26.9% 20.2% 5.1% 1.6%
Blocked nose ⓘ
Mild Moderate Severe
Under 60 34.8% 25.6% 7.8% 1.4%
60+ 36.3% 26.4% 8.7% 1.1%
Vomiting ⓘ
Mild Moderate Severe
Under 60 6.7% 6.0% 0.4% 0.2%
60+ 8.4% 7.4% 0.8% 0.3%
Diarrhoea ⓘ
Mild Moderate Severe
Under 60 15.2% 11.6% 3.0% 0.6%
60+ 18.6% 14.3% 3.5% 0.8%
Loss of smell and taste ⓘ
Mild Moderate Severe
Under 60 15.6% 8.8% 4.2% 2.5%
60+ 21.8% 11.6% 5.6% 3.5%
COVID-19 Severity ⓘ
Mild Moderate Severe
Male 84.8% 11.3% 1.7%
Female 85.1% 12.8% 1.1%
Cough ⓘ
Mild Moderate Severe
Male 50.6% 42.4% 7.5% 0.7%
Female 54.0% 43.6% 9.4% 1.0%
Temperature ⓘ
37.5 - 38°C 38.1 - 39°C 39.1 - 41°C
Male 22.9% 19.6% 2.8% 0.6%
Female 19.4% 15.6% 3.4% 0.5%
Fatigue ⓘ
Mild Moderate Severe
Male 50.4% 38.0% 11.2% 1.2%
Female 58.7% 36.2% 18.9% 3.6%
Coughing up mucus (sputum) ⓘ
Mild Moderate Severe
Male 38.9% 33.9% 3.7% 1.3%
Female 39.4% 32.7% 4.7% 2.1%
Shortness of breath ⓘ
Mild Moderate Severe
Male 32.5% 26.2% 5.9% 0.4%
Female 34.6% 27.6% 6.4% 0.6%
Muscle aches ⓘ
Mild Moderate Severe
Male 39.5% 30.0% 8.6% 0.9%
Female 50.5% 33.7% 14.3% 2.5%
Sore throat ⓘ
Mild Moderate Severe
Male 49.8% 36.6% 11.6% 1.7%
Female 49.8% 35.4% 12.4% 2.0%
Headache ⓘ
Mild Moderate Severe
Male 35.2% 26.9% 7.3% 1.0%
Female 48.3% 31.9% 13.3% 3.0%
Chills ⓘ
Mild Moderate Severe
Male 16.2% 13.1% 2.8% 0.3%
Female 22.0% 16.3% 4.8% 0.9%
Blocked nose ⓘ
Mild Moderate Severe
Male 36.8% 27.5% 8.1% 1.2%
Female 32.9% 23.6% 7.6% 1.6%
Vomiting ⓘ
Mild Moderate Severe
Male 5.8% 5.3% 0.3% 0.2%
Female 8.0% 7.1% 0.6% 0.3%
Diarrhoea ⓘ
Mild Moderate Severe
Male 14.0% 11.2% 2.4% 0.4%
Female 17.0% 12.4% 3.8% 0.8%
Loss of smell and taste ⓘ
Mild Moderate Severe
Male 13.7% 8.7% 3.6% 1.4%
Female 18.6% 9.5% 5.1% 4.0%
COVID-19 Severity ⓘ
Mild Moderate Severe
UK 74.2% 23.8% 1.5%
India 87.3% 9.1% 1.6%
Phillipines 91.9% 7.4% 0.7%
Cough ⓘ
Mild Moderate Severe
UK 58.7% 44.6% 12.4% 1.7%
India 47.2% 38.9% 7.6% 0.7%
Phillipines 54.4% 46.1% 6.9% 0.3%
Temperature ⓘ
37.5 - 38°C 38.1 - 39°C 39.1 - 41°C
UK 20.7% 14.7% 5.0% 1.0%
India 22.7% 18.7% 2.6% 0.4%
Phillipines 11.3% 9.5% 1.6% 0.2%
Fatigue ⓘ
Mild Moderate Severe
UK 76.2% 37.4% 31.7% 7.2%
India 43.3% 32.6% 9.6% 1.1%
Phillipines 44.9% 37.4% 7.1% 0.4%
Coughing up mucus (sputum) ⓘ
Mild Moderate Severe
UK 43.0% 33.0% 7.8% 2.2%
India 36.7% 31.9% 3.4% 1.5%
Phillipines 37.6% 33.8% 2.4% 1.4%
Shortness of breath ⓘ
Mild Moderate Severe
UK 45.1% 34.6% 9.7% 0.8%
India 25.9% 20.2% 5.3% 0.4%
Phillipines 39.2% 32.4% 6.5% 0.4%
Muscle aches ⓘ
Mild Moderate Severe
UK 61.2% 35.2% 21.1% 4.9%
India 34.5% 26.1% 7.7% 0.7%
Phillipines 44.2% 35.4% 8.2% 0.6%
Sore throat ⓘ
Mild Moderate Severe
UK 49.9% 33.2% 13.8% 2.9%
India 51.7% 37.5% 12.8% 1.4%
Phillipines 48.7% 37.4% 10.2% 1.2%
Headache ⓘ
Mild Moderate Severe
UK 61.5% 34.7% 20.3% 5.5%
India 29.9% 21.7% 6.4% 0.8%
Phillipines 37.4% 29.9% 6.7% 0.7%
Chills ⓘ
Mild Moderate Severe
UK 35.2% 23.3% 9.6% 2.2%
India 12.7% 10.2% 2.3% 0.3%
Phillipines 13.0% 11.6% 1.3% 0.2%
Blocked nose ⓘ
Mild Moderate Severe
UK 41.6% 27.7% 11.5% 2.4%
India 29.3% 21.6% 6.6% 1.1%
Phillipines 33.7% 27.5% 5.5% 0.6%
Vomiting ⓘ
Mild Moderate Severe
UK 9.1% 7.9% 0.9% 0.3%
India 5.2% 4.7% 0.3% 0.2%
Phillipines 7.4% 7.0% 0.2% 0.1%
Diarrhoea ⓘ
Mild Moderate Severe
UK 24.8% 17.5% 5.8% 1.5%
India 9.0% 6.8% 1.9% 0.3%
Phillipines 16.7% 13.8% 2.6% 0.3%
Loss of smell and taste ⓘ
Mild Moderate Severe
UK 30.6% 12.9% 8.9% 8.8%
India 9.4% 5.9% 2.2% 1.3%
Phillipines 11.2% 8.3% 2.5% 0.5%

How to participate in this study

You can help us map the pandemic by clicking on the following link and filling in the survey.

We can share the anonymised data from this research contact partners@your.md.

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