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The Tell-Tale Signs: Recognising Flu Symptoms

Reviewed by Getadoc Team5 min read Updated 30 April 2026
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The flu, scientifically known as influenza, is a prevalent infection affecting millions globally, with South Africa no exception. With the onset of flu season, it becomes crucial for South Africans to be aware of the primary signs and symptoms to better protect themselves and their loved ones. This article aims to educate readers about the distinct flu symptoms and differentiate them from the common cold. Recognising these symptoms promptly can assist individuals in seeking timely medical care, especially when complications arise.

What are the Flu Symptoms?

  • High fever: A sudden increase in body temperature, often reaching 38°C or higher, is one of the most common flu symptoms in adults.
  • Muscle and body aches: People might experience pain and stiffness, especially in the back, legs, and arms.
  • Fatigue and weakness: Feeling drained is a hallmark flu symptom.
  • Cough and sore throat: Persistent coughing accompanied by a painful throat is prevalent.
  • Nasal congestion: A blocked or runny nose can cause discomfort.
  • Headaches: Intense and persistent headaches are frequently reported.
  • Chills and sweats: These often accompany fever and can occur suddenly.
  • Gastrointestinal symptoms: While less common, some people might experience nausea, vomiting, or diarrhoea.

How Does Flu Differ from a Common Cold?

Differentiating between cold and flu symptoms can be challenging due to their similarity. However, flu symptoms usually come on suddenly and are more severe than those of a cold. A cold might start with a runny nose or a sore throat, but the flu can cause intense muscle aches, fever, and fatigue right from the beginning. Additionally, flu symptoms are more likely to lead to severe complications than cold symptoms.

Do Flu Symptoms Ever Go Away and Return?

Yes, in some cases, one might feel better after a few days of illness, only for the symptoms to return more severely. This can be concerning and often indicates a secondary infection or complication. If you notice that flu symptoms go away and return, it is advisable to consult a healthcare provider immediately.

Seeking Medical Care

Individuals with underlying medical conditions, such as lung disease, diabetes, or heart conditions, are at a higher risk of flu complications. Such complications can turn life-threatening if not addressed promptly. Therefore, it's essential to consult a healthcare provider if symptoms persist or seem severe.

Antiviral drugs can be prescribed to treat the flu. These medications are most effective when taken within 48 hours of the onset of symptoms. They might not cure the flu, but they can reduce its severity and duration.

Prevention: Better Safe Than Sorry

Prevention remains the best strategy against the flu. Here are some preventative measures:

  • Vaccination: Get the flu vaccine annually. It offers protection against the strains most likely to circulate during the upcoming flu season.
  • Wash hands: Regularly and thoroughly washing hands with soap and water eliminates germs, reducing the risk of infection.
  • Avoid close contact: If someone is sick, it's best to maintain distance to prevent the spread of the virus.
  • Stay informed: Keep updated on the flu season's peak months and take precautions accordingly.

Act Now for a Healthier Tomorrow

As the flu season approaches, equip yourself with knowledge. Recognising the flu symptoms early can aid in seeking timely medical care, preventing complications, and ensuring a quicker recovery. If you or a loved one displays flu symptoms in adults or children, don't hesitate to contact a healthcare provider. Prioritise your health and well-being.

Click here to read more about managing and preventing flu-related complications.

Disclaimer: This article is for informational purposes only and is not a substitute for professional medical advice or treatment. Always seek the advice of a qualified healthcare provider with any questions you might have regarding a medical condition.

References:

World Health Organization (2020). Influenza (Seasonal).

The South African Medical Research Council (2019). Seasonal Influenza Guidelines.

The National Institute for Communicable Diseases (2018). Influenza Surveillance in South Africa.

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