Test Blog

COVID-19 and flu can cause many of the same symptoms, making it difficult to tell which illness you have. While COVID-19 and flu can cause similar symptoms, they are caused by different viruses and may require different approaches to testing, treatment and prevention.

To help you feel more confident during flu season, this guide breaks down the crucial differences between COVID-19 and flu and how to spot them, alongside the right care for you and your family.

Flu vs COVID-19: the key differences

Influenza, commonly known as the flu, is caused by influenza viruses, while COVID-19 is caused by the SARS-CoV-2 virus. Both illnesses can cause similar symptoms, including fever, coughing and fatigue , so testing may be needed to determine which infection you have.

One key difference is how quickly symptoms can appear. Flu symptoms typically develop within 1–4 days of infection and often come on quite suddenly, while COVID-19 symptoms can take longer to develop.

Symptoms of flu and COVID-19

Alongside how quickly symptoms arise, COVID-19 differs from flu in that it can cause changes to taste and smell – and lead to long COVID in some people.

Symptoms of both infections can range from mild to severe, and some people are at greater risk of severe disease ¹ .

COVID-19 and flu share the following symptoms:

• Fever
• Coughing
• Sore throat
• Fatigue
• Headache
• Body aches

It's important to note that symptoms alone aren't a reliable way to tell COVID-19 and flu apart. Testing may be needed to determine the cause.

How can you tell if it is flu or COVID-19?

Due to their similarities, symptoms of COVID-19 vs flu may not be enough to know which infection someone has. The best way to determine next steps like self care and treatment is to confirm with flu or COVID-19 tests . This is especially important for those at a higher risk or people who have contact with vulnerable groups.

When should you test for COVID-19 or flu?

If you're experiencing COVID-19 or flu symptoms, COVID‑19 rapid antigen tests (RATs) can help to quickly detect infection. These tests are available at your pharmacy and can be used easily at home. A doctor or Pharmacist may advise further if the person is at higher risk – such as older adults, pregnant people and those with chronic conditions – or if symptoms worsen. In some cases, respiratory virus testing may be recommended for a more accurate diagnosis of specific viruses.

Who is more at risk of severe illness?

Certain groups are at higher risk from flu and COVID-19. Older adults, pregnant people, Aboriginal and Torres Strait Islander people, and people with certain medical conditions are more vulnerable to infections becoming more severe ² . It's important to seek medical advice early if symptoms such as breathing difficulty or fever develop. Both individuals and the wider community benefit by accessing help early.

How to care for flu or COVID-19 symptoms at home

Want to know how to manage symptoms for COVID-19, cold or flu ? Your Pharmacist can provide symptom-relief options for you and your family that are tailored specifically to age, symptoms and health history. If you're experiencing symptoms like fever or aches, these simple self-care tips can also make a big difference to your recovery:

• Get plenty of rest to help your body recover
• Drink fluids regularly
• Keep your environment comfortable
• Stay home while unwell
• Manage symptoms with suitable medicines
• Eat light, nutritious foods

When to seek medical advice

You should seek urgent care when symptoms are severe or worsen. This includes trouble breathing, chest pain or pressure, confusion, blue lips, dehydration, or symptoms that accelerate in intensity. It's especially important to get prompt help if there is concern for babies, older adults, pregnant individuals, or those with ongoing medical conditions, as they may be at a higher risk of complications.

How to help protect yourself and others

There are also easy ways you can protect yourself and others. Prevention is the most effective way to keep sickness at bay – and while respiratory illnesses are highly contagious (especially in winter seasons), practical steps go a long way in keeping communities safer:

• Staying home when sick
• Covering coughs and sneezes
• Washing hands
• Improving ventilation
• Wearing a mask in higher-risk settings
• Keeping recommended vaccinations up to date

Flu and COVID-19 vaccination

The flu vaccine and COVID-19 vaccine are crucial to helping reduce the risk of severe illness. Getting vaccinated is the most effective way to protect yourself and your family from severe illness. Australian guidance allows influenza vaccines to be given at the same time as COVID-19 vaccines for many people, depending on age and individual circumstances ³ .

How Blooms The Chemist can help

When you need trusted support, Blooms The Chemist Pharmacists are here. Our helpful and knowledgeable team can assist you with flu vaccination bookings, COVID-19 vaccination advice, symptom-relief guidance, testing products and advice on when to see a doctor.

Frequently asked questions about flu and COVID-19

Is COVID-19 the same as the flu?

No, COVID-19 and flu are not the same illnesses. Even though they share similar respiratory symptoms, they're caused by different viruses and can vary in severity and complications.

Can you have flu and COVID-19 at the same time?

You can have flu and COVID-19 at the same time. Testing or medical advice may be needed, especially if symptoms are severe or the person infected is at high risk.

Is flu worse than COVID-19?

Both flu and COVID-19 can be serious illnesses. The level of risk depends on factors like age, overall health, vaccination status and underlying conditions.

Can I get a flu vaccine and COVID-19 vaccine at the same time?

Many people can receive flu and COVID-19 vaccines on the same day. However, it's a good idea to check current guidance and confirm suitability with a Pharmacist or healthcare professional beforehand.

Conclusion

COVID-19 and flu can look similar in their symptoms, so testing is sometimes needed to confirm the cause. By keeping your vaccination schedule up to date, staying home when unwell, and speaking to a Pharmacist for help and advice, you can keep yourself and your community safer.