Kings College London says that its scientists have asked people who have tested positive for the virus to log their symptoms every day in a computer app.
The result showed that 59 percent of the 1.5 million people who participated noticed a loss of smell and taste. According to the researchers, this makes it a very good indicator for initially spotting infections.
Of those reporting one or more symptoms of coronavirus to the Covid Symptom Tracker app:
- 53 percent said they experienced fatigue or tiredness
- 29 percent had a persistent cough
- 28 percent experienced shortness of breath
- 18 percent had a loss of sense of smell or taste
- 10.5 percent suffered from fevers
Of these 400,000 individuals, 1,702 said they had been tested for Covid-19, with 579 receiving a positive result and 1,123 a negative one.
Among those who had coronavirus infection confirmed by a positive test, three-fifths, or 59 percent, reported a loss of smell and/or taste.