As winter tightens its grip and cases of respiratory illnesses surge across Britain, many are left wondering: is it flu or COVID? The symptoms can appear frustratingly similar, leaving people confused about how to respond.
Thankfully, a leading health expert has identified five crucial differences that could help you distinguish between these two seasonal threats.
The Five Key Distinctions Between Flu and COVID
1. Speed of Symptom Onset
Influenza typically strikes like lightning - you might feel perfectly fine in the morning but be completely debilitated by afternoon. COVID-19, meanwhile, often creeps in more gradually, with symptoms developing over several days.
2. Duration of Illness
While flu usually runs its course within 3-7 days for most healthy adults, COVID can linger significantly longer. Many people report symptoms persisting for two weeks or more, with some experiencing the dreaded 'long COVID' that extends for months.
3. The Tell-Tale Temperature
High fever is a hallmark of flu, often spiking dramatically. COVID fevers tend to be more moderate, though they can still make you feel miserable. The absence of a soaring temperature might point toward coronavirus.
4. Gastrointestinal Distress
Here's a key differentiator: stomach issues like diarrhoea and vomiting are rare in adults with flu but surprisingly common in COVID cases, particularly among children.
5. The Unforgiving Headache
Both illnesses can cause headaches, but COVID headaches are often described as particularly severe and persistent - sometimes lasting up to two weeks.
Why Accurate Identification Matters
Knowing which virus you're dealing with isn't just about satisfying curiosity. It affects how long you should isolate, when you can safely return to work, and what treatment options might be appropriate.
With the NHS facing unprecedented winter pressures, accurate self-assessment can also help healthcare professionals prioritise the most urgent cases.
When to Seek Medical Help
Regardless of which virus you suspect, certain red flags warrant immediate medical attention:
- Difficulty breathing or shortness of breath
- Chest pain or pressure
- Confusion or inability to stay awake
- Pale, grey, or blue-coloured skin, lips, or nail beds
As we navigate this challenging winter season, being able to distinguish between these two illnesses could make all the difference in managing your health effectively and knowing when to seek professional care.
