Covid certificates have become a hot topic as England continues to ease out of lockdown in hopes of a return to normal life.
Under the idea, also known as vaccine passports, people who meet certain criteria would be allowed more freedoms like going on holiday by proving they’ve either had the virus or the jab.
The tests include having had both jobs, proof of a recent negative test or having natural immunity after being previously infected.
The pros and cons of vaccine passports are being debated by politicians, but scientists said they are worried about people infecting themselves deliberately to get one.
Many infected people are asymptomatic, meaning they show no symptoms but still carry the virus, reports CambridgeshireLive.
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The thing is though, you may have had Covid already and just not known it as not everyone shows symptoms.
While the best way to know if you have had the virus is to get tested, below are eight possible signs you could look out for to show if you might have been infected.
New research has indicated that an eye infection such as conjunctivitis may be a symptom of Covid-19.
The College of Optometrists said: “It is recognised that any upper respiratory tract infection may result in viral conjunctivitis as a secondary complication, and this is also the case with Covid-19.
“However, it is unlikely that a person would present with viral conjunctivitis secondary to Covid-19 without other symptoms of fever or a continuous cough as conjunctivitis seems to be a late feature where is has occurred.”
A dry cough
Perhaps the most recognisable of the Covid-19 symptoms, given how different it can sound compared to a typical cough.
The cough is generally new for you – or different if you generally have a smoker’s cough – and persistent.
More often than not it will last for at least half a day.
Mental fatigue / brain fog
Brain fog has plagued those who say they suffer with ‘long Covid’, with people detailing accounts of experiencing it for months after having the virus.
It’s one of the symptoms people suffering from ‘Long Covid’ have mentioned as they struggle to shake off the side effects for as much as a year.
A high temperature
Although numbers vary for different people, a rise in body temperature generally counts as a fever once it reaches 37.7C (100F).
You can tell you have a fever if you feel hot to the touch on your chest or back.
However, it’s worth considering that fever accompanies a wide range of illnesses so on its own is not enough of a sign you’ve got the disease.
It’s difficult to catch your breath
If your chest starts to feel tight or you cannot breathe, you may have caught coronavirus.
Most young people or those without pre-existing health conditions are unlikely to experience this symptom.
Dyspnea – the term for when someone has difficulty breathing – may be coupled with a tightness in the chest, rapid breathing and heart palpitations.
Loss of sense of smell and taste
The British Association of Otorhinolaryngology warned that losing your sense of smell and taste may mean you have Covid-19.
The ear, nose and throat specialist recommended anyone with such symptoms self-isolate immediately.
It has been suggested that the phenomena may be caused by the coronavirus killing cells in the nose and throat.
Many people have reported not getting their smell or taste back weeks after having the virus.
As with a loss of appetite, enduring a tummy ache may easily be passed off as a sign of something more innocuous.
However, a study by the American Journal of Gastroenterology links tummy problems to Covid-19.
They found that 48.5 per cent of 204 people who have been infected by the coronavirus in China’s Hubei province had digestive symptoms such as diarrhoea.
Another common symptom of Covid-19, as well as cold, flu and many viruses in general, is feeling tired or fatigued.
Being told to rest is common when you’re ill, but feeling tired and not being able to sleep due to coughs and difficulty breathing, can make things all the more difficult.
It is important to note that you may have had one or several of these symptoms but have not had Covid-19.