Four possible new covid symptoms have been identified by UK scientists.
An investigation carried out on a million people shows chills, muscle ache, a loss of appetite and headaches could be associated with the virus, as well as the known ones such as a new persistent cough and a fever.
Imperial College London’s React study conducted the research using swab tests and questionnaires collected between June and January.
He explained: “These new findings suggest many people with Covid-19 won’t be getting tested – and therefore won’t be self-isolating – because their symptoms don’t match those used in current public health guidance to help identify infected people.
“We understand that there is a need for clear testing criteria, and that including lots of symptoms which are commonly found in other illnesses like seasonal flu could risk people self-isolating unnecessarily.
“I hope that our findings on the most informative symptoms mean that the testing programme can take advantage of the most up-to-date evidence, helping to identify more infected people.”
The Mirror reports that the researchers estimate that if everyone who had classic symptoms were tested, it would pick up around half of all symptomatic infections.
But they say that if the additional symptoms were included, this could be improved to three-quarters of symptomatic infections.
The study also found that there was a variation in symptoms depending on a person’s age.
Chills were linked with testing positive across all ages, while headaches were reported in children aged five to 17.
A loss of appetite was reported more in 18-54 year olds and those aged 55 and over. Muscle aches were mostly reported in people aged between 18 and 54.
According to the study, children were also less likely to report of a fever, a persistent cough and appetite loss compared with adults.
The study, which has not yet been peer-reviewed, also looked at whether the emergence of the UK’s new coronavirus variant, first identified in Kent, was linked with a different profile of symptoms.