Millions of people could already have contracted the new coronavirus Covid-19 and have no idea they had it, according to researchers at Oxford University's Evolutionary Ecology of Infectious Disease group.
The scientists say the disease may have been in the UK since the middle of January, meaning many of us caught it without knowing what it was -either experiencing no symptoms or just mild symptoms that we didn't recognise.
The study, which has yet to be peer-reviewed, says the disease could have been spreading for weeks before the alert went out at the end of February,
The key symptoms of Covid-19 are a new, dry, persistent cough and a fever - feeling hot on your head, chest or back or registering over 37.7C on a thermometer.
If you have these symptoms you should check your countries website for help.
Everyone should now be in lockdown, not leaving the house for anything for essential reasons, and anyone who has the cough, fever or other flu-like symptoms should self-isolate, not leaving their home at all.
In the weeks ahead, tests will be available to determine who has had the disease.
There are eight symptoms that could reveal that you have already had Covid-19.
It is important to note that you may have had one or several of these symptoms but have not had Covid-19.
1. Eye infections
New research has indicated that 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."
2. 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 persistant.
More often than not it will last for at least half a day.
3. Mental fatigue
Although this has not been officially chalked up as a symptom, Covid-19 sufferers have reported experiencing mental fatigue.
Thea Jourdan told The Daily Mail that she first thought she may have been infected when she got a tickle in her throat and a headache.
The mum-of-three then began to experience brain fog.
"Initially I felt exhausted, as if I was dragging myself through treacle and had no choice but to go to my bed. I had no meaningful cough and I wasn’t running a fever," the Hampshire woman told the publication.
"But I had a peculiar sensation of something settling deep within my lungs, almost like breathing in talcum powder."
4. 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.
5. It's difficult to catch your breath
If your chest starts to feel tight or you cannot breath, you may have caught the 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.
6. Loss of sense of smell and taste
Over the weekend 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.
"Evidence from other countries that the entry point for the coronavirus is often in the eyes, nose and throat areas," the Association said in a statement.
"We have also identified a new symptom (loss of sense of smell and taste) that may mean that people without other symptoms but with just the loss of this sense may have to self-isolate - again to reduce the spread of the virus."
7. Tummy ache
As with a loss of appetite, enduring a tummy ache may easily be passed off as a sign of something more innocuous.
However, a newly published study by the American Journal of Gastroenterology links tummy problems to Covid-19.
They found that 48.5% of 204 people who have been infected by the coronavirus in China's Hubei province had digestive symptoms such as diarrhoea.
8. Physical fatigue
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.
Jaimuay Sae-ung, 73, was the first Thai national to contract coronavirus in December last year.
Despite having underlying health conditions, including a heart problem, Jaimuay survived the illness after doctors isolated her at a hospital in Thailand for treatment.
"I only knew (I had coronavirus) after I came to the hospital," the mother of seven told Sky News.
"I felt a bit sad, a bit shocked, tired and fatigued and I couldn't eat."
I understand that Coronavirus is bad news but these symptoms you all have listed is part of everyday life for lots of people, panic is what the internet and the media have instilled in everyone. Things are bad enough, then it has to be polarized and talked about constantly. So everyone wants to blame the president when in reality news outlets, CNN mainly, social media.
I have fibromyalgia and a lot of these symptoms I have all the time because if that and I also have asthma. It's really hard for people like me and scarry I had a severe infection once and because of my everyday symptoms I didn't sees doctor until I was really bad and had to be hospitalized overnight. Oh and I also have type 2 diabetes. I wish there was some kind of home test you could do to make sure your ok. I haven't died yet do so I guess I'm good.
This is all a case of MAYBE! Stop putting this sort of information on fb hyping people up. FACTS are important. I had chemo and radiation therapy last year and most of these symptoms are what I experienced. STOP these sort of postings.
I had like grit in my chest and throat in November was very tired as well last couple of weeks iv had sores in my nose which iv never had and roof of mouth very sore makes me wonder if stuff like this is connected to it
I am Disabled, I have a long standing(40 year) lung problem(previous TB) and on lifelong Antibiotics. Fibromyalgia all over,Arthritis in most areas an so suffer with a lot of problems, dry throat, blowing hot and cold, tiredness, dry cough etc. I have been NO WORSE since the Corona outbreak. ������
My daughter in law had this in Nov. She was also pregnant. She ran a 103 temp for 3 days. She then developed the cough that lasted 2 weeks. She also had trouble breathing. If it wasn't for a friend who had a nebulizer I hate to think what could have happened. This started long before Jan. It's disgraceful and deadly how this was handled!
I totally agree, all these big box stores making big time bank off the media hype.
Very Nice And Interesting Post, thank you for sharing
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I HAD THESE SYMPTOMS IN NOVEMBER,TWO WEEKS,I HAD HIGH FEVER,SHORTNESS OF BREATH,PINK EYE AND A STY ON MY RIGHT.NO APPETITE,BODY FIRTIGUE,AND MY WHOLE BODY ACHES,I WAS REALLY MISERABLE.I MISS THANKSGIVING WITH MY FAMILY.I BELIEVE IT'S BEEN AROUND SINCE EARLY FALL.
I had it back in May. I thought for sure God was taking me home. Even my doctors couldn't tell me what I had because it wasn't "around" yet. But I know. I am thankful to be alive today.
I have had a persistant eye problem now for weeks. I thought I had pink eye but it doesn't seem to be the way it was when I had pink eye years ago, so I am just living with it. Mostly my right eye is having discharge and feels crusty when I wake in the mornings. If this is the virus then it hasn't persisted and I am high risk due to my age and lung cancer with COPD. Partial lung removal for the cancer. This is why I am worried about this eye thing.
I tested positive after sending for a home test. I lost my sense of smell and taste in April 15th this year. Its now june 2nd. I requested a re test to see if i am now negative , to be told they dont re test ! So , do i still isolate as my taste and smell have not returned yet? I was furloughed, but now that is ending soon and I am concerned .
The president has not quelled concerns, he lacks leadership in assuring the public so the concern and panic are in 45 as he has not allowed expert to explain to the public so there is transparency and scientific information not made up info from a inept president
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