During the 2023-2024 season, the US reported over 35 million flu cases, while the UK saw a sharp increase in respiratory infections (CDC FluView, UKHSA Weekly Reports). Both viruses primarily affect the respiratory system, causing symptoms like congestion, cough, and fever. However, distinguishing typical viral symptoms from early signs of severe complications—such as pneumonia or secondary bacterial infections—remains a critical challenge for clinicians and patients alike.
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17. Using Thermometers Fever is a common sign of infection, signaling that the body’s immune system is working to fight off cold or flu viruses. Monitoring…