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| Version 2 | Version 3 |
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| Sore throat and cough top symptoms that could be Covid | |
| (about 20 hours later) | |
| Top symptoms that could be Covid are a sore throat or a cough, according to data from 17,500 people who said they had tested positive for the virus this week. | |
| Other common ones reported were headache and blocked nose. | |
| A high temperature or fever and loss of smell or taste - ones which the NHS list high up as likely Covid symptoms - were far less common. | A high temperature or fever and loss of smell or taste - ones which the NHS list high up as likely Covid symptoms - were far less common. |
| A hoarse voice, sneezing, tiredness and muscle aches scored higher. | |
| The top 20 Covid symptoms, in descending order, according to the data from the Zoe App study are: | The top 20 Covid symptoms, in descending order, according to the data from the Zoe App study are: |
| Sore throat - reported by 58% | Sore throat - reported by 58% |
| Headache - 49% | Headache - 49% |
| Blocked nose - 40% | Blocked nose - 40% |
| Cough no phlegm - 40% | Cough no phlegm - 40% |
| Runny nose - 40% | Runny nose - 40% |
| Cough with phlegm - 37% | Cough with phlegm - 37% |
| Hoarse voice - 35% | Hoarse voice - 35% |
| Sneezing - 32% | Sneezing - 32% |
| Fatigue - 27% | Fatigue - 27% |
| Muscle pains/aches - 25% | Muscle pains/aches - 25% |
| Dizzy light-headed - 18% | Dizzy light-headed - 18% |
| Swollen neck glands - 15% | Swollen neck glands - 15% |
| Eye soreness - 14% | Eye soreness - 14% |
| Altered smell - 13% | Altered smell - 13% |
| Chest pain tightness - 13% | Chest pain tightness - 13% |
| Fever - 13% | Fever - 13% |
| Chills or shivers - 12% | Chills or shivers - 12% |
| Shortness of breath - 11% | Shortness of breath - 11% |
| Earache - 11% | Earache - 11% |
| Loss of smell - 10% | Loss of smell - 10% |
| It fits with what other researchers have been seeing. | It fits with what other researchers have been seeing. |
| NHS: What to do if you have symptoms | NHS: What to do if you have symptoms |
| Do I need to isolate if I have Covid? | Do I need to isolate if I have Covid? |
| How many people still haven't had a Covid jab? | How many people still haven't had a Covid jab? |
| The React-1 study has, each month, been sending 150,000 randomly selected people across England swab tests to do at home. | The React-1 study has, each month, been sending 150,000 randomly selected people across England swab tests to do at home. |
| Findings from that show the symptoms people have with Covid have changed as the pandemic has evolved. | Findings from that show the symptoms people have with Covid have changed as the pandemic has evolved. |
| It could be down to how the virus has been changing or mutating over time, scientists believe. | It could be down to how the virus has been changing or mutating over time, scientists believe. |
| Several Covid variants have emerged since the original Wuhan strain, with the latest one being Omicron. | Several Covid variants have emerged since the original Wuhan strain, with the latest one being Omicron. |
| The React-1 researchers, from Imperial College London, say loss of sense of smell and taste appears to be less common with this variant. Instead, people are reporting more cold and flu-like symptoms. | The React-1 researchers, from Imperial College London, say loss of sense of smell and taste appears to be less common with this variant. Instead, people are reporting more cold and flu-like symptoms. |
| They looked at original Omicron - known as BA.1 and BA.2 - that was spreading in March 2022. | They looked at original Omicron - known as BA.1 and BA.2 - that was spreading in March 2022. |
| Since then, two fast-spreading new subvariants of Omicron called BA.4 and BA.5 have dominated, causing more new infections. | Since then, two fast-spreading new subvariants of Omicron called BA.4 and BA.5 have dominated, causing more new infections. |
| An estimated 2.7 million people in the UK, or one in 25, are thought to have Covid. | An estimated 2.7 million people in the UK, or one in 25, are thought to have Covid. |
| Prof Tim Spector, who runs the Zoe Health Study, said: "Covid is still rampant in the population. | Prof Tim Spector, who runs the Zoe Health Study, said: "Covid is still rampant in the population. |
| "Even if people have had a past infection and are fully vaccinated, people are still catching it. | "Even if people have had a past infection and are fully vaccinated, people are still catching it. |
| "Although we all want to make the most of the good weather, people will need to decide for themselves whether going to large events, working from the office or using busy public transport is worth the risk." | "Although we all want to make the most of the good weather, people will need to decide for themselves whether going to large events, working from the office or using busy public transport is worth the risk." |
| Both the Zoe study and the React-1 study had been funded by the government until recently. | Both the Zoe study and the React-1 study had been funded by the government until recently. |