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Covid-19 Symptom Mapper Results

Last updated 24 August 2020

Background

In April 2020, Your.MD launched the COVID-19 Symptom Mapper in partnership with Imperial College London to better understand how the disease is affecting communities worldwide. The mapper asks users to select the symptoms they’ve experienced from a list known to be associated with the illness.

Data Set

As of 24 August 2020, 171965 people around the world (an increase of 9335 respondents compared with the week commencing 10 August 2020) have used the mapper to record their symptoms, with 80% reporting at least one symptom. A final sample of 95000 respondents were analysed. This included people who self-diagnosed as having COVID-19 with at least one symptom, or those who self-diagnosed as not having COVID-19 but experienced fatigue, fever, cough and anosmia (loss of smell or taste).

Key Points

Our data showed that fatigue, headache and sore throat were the three most common symptoms (48.6%, 48.2% and 43.6% respectively). Among people who had tested positive for the virus, nearly half reported experiencing anosmia (46.1%).

Women reported chills, headache, muscle ache and loss of smell or taste more commonly than men.

The majority of people in our sample (84.2%) had mild symptoms. However, among those who had tested positive for COVID-19, nearly 1 in 3 experienced moderate symptoms.

The length of time people fell ill varied. 3 in 4 people in the sample had symptoms for a week or less, but around 1 in 15 people reported to have symptoms that lasted more than 3 weeks. Shortness of breath, mucusy cough (sputum) and dry cough were three most long-lasting symptoms.

Countries with the highest number of people with COVID-19 symptoms recorded in the Mapper were Mexico (22.6%), India (14.3%), Pakistan (9.1%), Brazil (7.2%), Bolivia (5.9%), the Philippines (5.6%), the UK (5.1%) and Peru (4.4%).

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
84.0% 14.8% 1.1%

Gender

The table below shows the gender split of participants across the top 10 countries.

Country Male Female
Mexico 36.7% 63.3%
India 64.1% 35.9%%
Pakistan 56.5% 43.5%
Brazil 17.2% 82.8%
Bolivia 45.9% 54.1%
Phillipines 50.3% 49.7%
United Kingdom 21.9% 78.1%
Peru 43.4% 56.6%
El Salvador 36.7% 63.3%
Nicaragua 39.7% 60.3%

Age

The table below shows the age distribution of participants.

Under 40 40 - 59 60+
65.2% 29.7% 5.0%

Duration of Illness

The table below shows the number of days people reported to be unwell.

Duration Percentage
None 18.6%
1-3 days 31.3%
4-7 days 27.3%
8-14 days 13.1%
15-21 days 4.1%
22+ days 5.5%

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 41.6% 68% 
Temperature 25.0% 22% 
Fatigue / Tiredness 48.6% 38% 
Coughing up mucus (sputum) 18.1% 34% 
Shortness of breath 17.9% 19% 
Muscle aches 38.2% 15% 
Sore throat 43.6% 14% 
Headache 48.2% 14% 
Chills 18.8% 12% 
Blocked nose 38.3% 5% 
Vomiting 5.1% 5% 
Diarrhoea 19.1% 5% 
Loss of smell and taste 28.3% N/A 
Loss of appetite 6.5% N/A 
Sneezing 0.0% N/A 
Chest pain / tightness 3.8% N/A 
Itchy eyes 12.8% N/A 
Joint pain / aches 4.5% N/A 

Breakdown by category

The section below shows a breakdown of the severity of self diagnosis by age and the percentage breakdown for each symptom by gender and country.

COVID-19 Severity ⓘ
Mild Moderate Severe
Under 40 85.3% 13.7% 1.0%
40-59 82.5% 16.5% 1.0%
60+ 78.3% 19.8% 1.9%
Symptom Male Female
Cough ⓘ 43.2% 56.8%
Temperature ⓘ 50.7% 49.3%
Fatigue ⓘ 39.6% 60.4%
Coughing up mucus (sputum) ⓘ 49.0% 51.0%
Shortness of breath ⓘ 44.4% 55.6%
Muscle aches ⓘ 38.2% 61.8%
Sore throat ⓘ 40.5% 59.5%
Headache ⓘ 34.5% 65.5%
Chills ⓘ 38.4% 61.6%
Blocked nose ⓘ 40.1% 59.9%
Vomiting ⓘ 37.0% 63.0%
Diarrhoea ⓘ 39.3% 60.7%
Loss of smell and taste ⓘ 36.2% 63.8%
Loss of appetite 32.8% 67.2%
Sneezing 0% 0%
Chest pain ⓘ 37.4% 62.6%
Itchy eyes ⓘ 29.3% 70.7%
Joint pain ⓘ 33.4% 66.6%
Symptom India Mexico Pakistan Philippines UK
Cough ⓘ 13.6% 20.2% 9.9% 7.2% 7.1%
Temperature ⓘ 16.5% 21.2% 16.5% 2.7% 4.3%
Fatigue ⓘ 12.4% 23.8% 11.2% 5.2% 8.0%
Coughing up mucus (sputum) ⓘ 18.6% 10.2% 11.4% 11.3% 12.0%
Shortness of breath ⓘ 13.3% 16.1% 7.9% 12.0% 12.9%
Muscle aches ⓘ 10.3% 22.8% 7.7% 6.5% 8.3%
Sore throat ⓘ 14.3% 23.0% 9.2% 6.3% 5.8%
Headache ⓘ 8.9% 24.6% 7.5% 4.4% 6.3%
Chills ⓘ 8.7% 22.8% 6.2% 4.0% 9.6%
Blocked nose ⓘ 10.0% 22.5% 7.8% 4.8% 5.5%
Vomiting ⓘ 12.2% 19.4% 10.3% 8.4% 9.3%
Diarrhoea ⓘ 7.3% 26.2% 7.1% 4.9% 6.7%
Loss of smell and taste ⓘ 9.0% 27.3% 9.3% 2.4% 5.4%
Loss of appetite 10.8% 25.1% 13.8% 0.1% 0.5%
Sneezing 0% 0% 0% 0% 0%
Chest pain ⓘ 17.7% 12.2% 20.5% 0.5% 0.8%
Itchy eyes ⓘ 5.3% 28.9% 7.1% 0.1% 0.4%
Joint pain ⓘ 16.1% 9.0% 28.1% 0.5% 1.3%

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.

CogX 2020 Awards - People's Choice COVID-19 Innovation-Society

Your.MD were awarded the 2020 People's Choice COVID-19 Innovation-Society award for the work we have done on the COVID-19 Symptom Mapper.

CogX Awards

Stay in touch and help us learn more

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For the latest information on the coronavirus outbreak, visit our coronavirus hub and sign-up to our Daily Drop-in service to receive valuable tips on how to survive social distancing.

Previous version of statistics from August 10, 2020 can be found here.

Important: Our website provides useful information but is not a substitute for medical advice. You should always seek the advice of your doctor when making decisions about your health.

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