Having been living with the virus for two years, many medical professionals and scientists have been studying each variant and looking at its symptoms.
Currently, many people can present without the typical covid symptoms so it's crucial that we are testing regularly - something the FM Nicola Sturgeon has stressed.
There are three 'main' symptoms of covid which include the likes of a fever and a cough however other symptoms such as nausea, back pain and a rash may be some of the lesser-known symptoms.
So what is the full list of official symptoms according to the experts?
Covid symptoms according to the NHS
NHS guidance has remained unchanged since the start of the pandemic.
The three symptoms listed are:
- High temperature – this means you feel hot to touch on your chest or back (you do not need to measure your temperature)
- New, continuous cough – this means coughing a lot for more than an hour or three or more coughing episodes in 24 hours (if you usually have a cough it may be worse than usual)
- Loss or change to your sense of smell or taste – this means you've noticed you cannot smell or taste anything or things smell or taste different to normal
The NHS lists the same symptoms for children however it notes that cases are usually less serious.
Covid symptoms according to the WHO
The World Health Organisation (WHO) notes how the virus affects people in different ways and have broken down their list into common, less common, and serious symptoms.
Most common symptoms are listed as:
- Fever
- Cough
- Tiredness
- Loss of taste or smell
Less common symptoms are listed as:
- Sore throat
- Headache
- Aches and pains
- Diarrhoea
- A rash on skin or discolouration of fingers or toes
- Red or irritated eyes
Serious symptoms are listed as:
- Difficulty breathing or shortness of breath
- Loss of speech or mobility or confusion
- Chest pain
Those with serious symptoms are advised to seek immediate medical attention but to call ahead before visiting a doctor or health facility.
Covid symptoms according to the CDC
The US Centers for Disease Control and Prevention (CDC) acknowledge there are now a 'wide range' of symptoms reported with them appearing anywhere between two and 14 days after exposure to the virus.
The symptoms listed are:
- Fever or chills
- Cough
- Shortness of breath or difficulty breathing
- Fatigue
- Muscle or body aches
- Headache
- New loss of taste or smell
- Sore throat
- Congestion or runny nose
- Nausea or vomiting
- Diarrhoea
They also advise seeking emergency medical attention if a person develops the following symptoms:
- Trouble breathing
- Persistent pain or pressure in the chest
- New confusion
- Inability to wake or stay awake
- Pale, grey, or blue-coloured skin, lips, or nail beds depending on skin tone
Covid symptoms according to the ZOE study
The ZOE covid study is supported by a grant from the UK Government Department of Health and Social Care and endorsed by NHS Wales and NHS Scotland. It is the largest ongoing study of Coronavirus.
The current most important symptoms to look for:
- Runny nose
- Headache
- Sneezing
- Sore throat
- Persistent cough
- Fever
- Loss of taste and smell
Other symptoms listed by ZOE so far:
- High temperature
- Chills or shivers
- Unusual tiredness (fatigue)
- Sudden confusion, especially in older people
- Skin rash
- Changes in the mouth or tongue (Covid tongue)
- Red and sore fingers or toes
- Shortness of breath
- Chest pain
- Muscle pain
- Hoarse voice
- Diarrhoea
- Skipping meals
- Abdominal pains
