Latest research has revealed a number of 'surprising' symptoms that could indicate early signs of Covid-19.

We've put together what you need to know.

What are the main coronavirus symptons?

In the UK, officials have listed the main coronavirus symptoms as: 

  • Coughing
  • Fever
  • Loss of sense of taste or smell

According to the NHS most people with coronavirus have at least one of these symptoms.

But there are many others that people suffer regularly.

What have researchers found?

New details from researchers at King’s College in London have warned of several 'surprising' symptoms that could be early warning signs for the virus.

Using data from the Covid Symptom Study app, the researchers have created a list of the most common symptoms reported by patients in the first seven days after onset.

The researchers said: “We have been busy researching what the early symptoms of Covid-19 really are, as this information is essential to helping us all stop the spread of the virus in the coming months.

“If we can spot cases based on symptoms sooner, people will be able to start self isolating in those first few days and stop the accidental spread of the virus.”

What are the 'surprising' early warning signs of Covid-19?

The two of the most surprising early warning signs revealed in the study are a headache and fatigue, which the researchers describe as the 'dark horses of Covid symptoms'.

“Our data shows that the most commonly experienced early symptoms are actually headache (82 per cent) and fatigue (72 per cent) - and this is the case for all age groups.

“Only 9nine per cent of Covid-positive adults aged 18 - 65 didn’t experience headache or fatigue”, the researchers added.

However despite the high levels, only one per cent of people reporting fatigue and/or headache on the app ended up testing positive for Covid.

The researchers added: “While headache and fatigue are commonly found in people who have Covid (alongside other symptoms), having either or both of those symptoms alone is unlikely to be indicative of Covid.”

Unsurprisingly, a fever, persistent cough and loss of smell were found to be strong early indicators of Covid-19.

The researchers continued: “40 per cent of all age groups reported having a fever in the first seven days, and this or loss of smell and persistent cough are still the key symptoms to be aware of - so people with the classic three symptoms of persistent cough, fever or loss of smell should certainly seek a Covid test.”

What did the reasearch find for those over the age of 65?

Meanwhile, those over the age of 65 were also found to report being confused, disorientated and having severe shortness of breath in the early stages of infection.

The researchers continue to monitor the app, and will release new findings soon.

They added: “Please bear in mind that we are providing percentages and averages and in medicine there may be rare exceptions.”