Are there different risks after SARS-CoV-2 compared to other types of Respiratory Viral Infections?

Research shows that while many symptoms following a respiratory infection are common across different viruses, certain conditions may occur more frequently specifically after an infection with SARS-CoV-2. Both SARS-CoV-2 and other common respiratory viruses, such as influenza and respiratory syncytial virus (RSV), can lead to serious medical complications depending on the patient's health.

What the research says

A meta-analysis of several studies found that certain conditions occur at a higher risk specifically after SARS-CoV-2 infection compared to other respiratory viral infections. These specific risks include pulmonary embolism, abnormal breathing, fatigue, hemorrhagic stroke, and memory loss or brain fog ³. For many other symptoms, the evidence was not conclusive enough to say they are unique to SARS-CoV-2, suggesting many post-viral issues may be common across different types of viruses ³.

Clinical outcomes can also vary significantly between virus types. For example, a study of hospitalized patients found that pneumonia was diagnosed more frequently in those with RSV infections compared to those with influenza or SARS-CoV-2 ⁶. Additionally, while both influenza and SARS-CoV-2 are serious, data shows differences in the odds of complications like hypoxemia (low blood oxygen) and death when comparing these viruses in large patient groups ². Furthermore, research indicates that respiratory viral infections in general are associated with increased cardiovascular risks during hospitalization ⁷.

What to ask your doctor

• Are there specific long-term symptoms I should monitor after my infection?
• How do the risks of complications differ between SARS-CoV-2 and other viruses like influenza or RSV?
• What are the signs of respiratory distress or cardiovascular issues I should watch for?
• Based on my medical history, what specific risks should I be most concerned about?