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What's got you sick????

You may have noticed that your kids are bringing home more than homework with school back in full swing. Did you know there are more than 200 different types of viruses that cause cold symptoms alone? You should see your healthcare provider if you feel under the weather. However, there are some clues to distinguish a viral infection from a bacterial infection. Remember a viral infection usually goes away on its own with time, whereas a bacterial infection needs antibiotics.

Virus Symptoms

  • Gradual Onset: Many viral infections tend to have a gradual onset. Symptoms may start mildly and progressively worsen over time. For instance, the common cold often begins with a scratchy throat or a runny nose, intensifying over a day or two.

  • Fever: It is common to have a fever with viral infections. It is your body's immune response to fight off the virus. Fever is a common symptom of illnesses like influenza and COVID-19.

  • Respiratory Symptoms: Viruses frequently target the upper respiratory system, leading to coughing, sneezing, congestion, and occasional shortness of breath. Diseases like the flu, common cold, and respiratory syncytial virus (RSV) are classic examples. You can have green or yellow mucous with viral infections.

  • Fatigue and Muscle Aches: A viral illness can make you feel tired and achy. This results from your body using its energy and resources to fight off the virus.

  • Duration: Viral illnesses typically last for a shorter time, often a few days to weeks. They can be self-limiting, meaning they resolve on their own with rest, increasing fluids, and common over-the-counter medications to comfort your symptoms.

Bacterial Symptoms

  • Sudden Onset: Bacterial infections often come suddenly and can rapidly progress. Bacterial infections like bacterial pneumonia, urinary tract infections (UTIs), and bacterial meningitis have this characteristic.

  • Fever: Bacterial infections can also cause fever. However, bacterial fever is sometimes more persistent and may not respond as quickly to over-the-counter fever reducers.

  • Localized Pain: Bacterial infections often lead to localized symptoms, such as pain or discomfort in specific body areas. For instance, Strep throat, a bacterial infection, may cause sore throat, and a urinary tract infection can cause pain or burning during urination.

  • Pus Formation: Bacterial infections can produce thick yellowish fluid which is dead white blood cells and tissue


. Skin infections like cellulitis and abscesses often involve pus formation. Remember, just because your nasal mucous is yellow or green does not automatically make it a bacterial infection.

  • Response to Antibiotics: The critical difference between viruses and bacteria is their response to antibiotics. Bacterial infections are usually treatable with antibiotics, whereas antiviral medications (Tamiflu, Paxlovid, etc.) and supportive care are required to manage viral infections.

  • Duration: Bacterial infections can persist for longer periods if left untreated. Some chronic bacterial conditions, such as tuberculosis and Lyme disease, can last months or even years.



It can be difficult to distinguish if you have a viral or bacterial infection. If you suspect you have any infection, it's always advisable to consult a healthcare professional for a proper diagnosis and guidance on the most effective course of treatment. Whether viral or bacterial, prompt and accurate treatment can help you recover more quickly and avoid complications. Remember encouraging basic hand washing is the easiest way to prevent the spread of illness!


The following graphic from Centers for Disease Control and Prevention is a useful and educational guide for differences between bacterial and viral infections. https://www.cdc.gov/antibiotic-use/pdfs/VirusOrBacteria-Original-P.pdf



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