Studies show RSV’s severity and impact on long-term health

Respiratory syncytial virus (RSV) is often mistaken for a common cold, but recent studies conducted by researchers at Singapore General Hospital (SGH) have revealed that this illness can be quite serious and should not be underestimated. Collaborating under the Program for Research in Epidemic Preparedness And REsponse (PREPARE), the researchers found that RSV can be as severe as other well-known respiratory viral infections (RVIs) such as influenza and COVID-19.

In three extensive cohort studies, the researchers delved into the severity of RSV, the risk of cardiac complications, and the long-term effects of the illness in patients who required hospitalization due to RSV, as compared to influenza and COVID-19 hospitalizations. The results consistently showed that RSV was equally severe to influenza and COVID-19.

Dr. Ian Wee, Consultant at the Department of Infectious Diseases at SGH and Deputy Lead of the Databases Core at PREPARE, emphasized the importance of further research on RSV due to its seriousness. He highlighted that while RSV may not be as common as influenza or COVID-19, it is equally severe, especially in Singapore’s tropical climate where RSV transmission occurs year-round.

The first study, published in The Lancet Regional Health – Western Pacific, analyzed nearly 13,000 adult hospitalizations for RSV, COVID-19, and influenza to compare the risk of 28-day mortality and intensive-care-unit admission. The findings revealed that RSV hospitalizations had higher death rates and more intensive care admissions compared to influenza, making RSV equally severe to COVID-19 hospitalization.

The second study, published in JAMA Network Open, focused on the risk of acute cardiac complications in patients hospitalized for RSV, COVID-19, and influenza. It showed that RSV hospitalizations had a significantly higher risk of acute cardiovascular events compared to COVID-19 and vaccine-breakthrough influenza hospitalizations.

The third study, published in Clinical Microbiology and Infection, examined the long-term complications following RSV infection in both adults and children. The results indicated an increased risk of cardiovascular and neurological complications in adults up to 300 days post-hospitalization, and a higher risk of post-acute respiratory complications in pediatric patients following RSV hospitalization.

Understanding RVIs and RSV is crucial for effective prevention and treatment. RVIs are caused by viruses that affect the respiratory system and can lead to severe illnesses like pneumonia or respiratory failure. RSV, similar to other respiratory viruses, spreads through close contact, respiratory droplets, or contaminated surfaces. While most individuals experience mild symptoms, young children, older adults, and those with underlying health conditions are at higher risk of severe RSV.

Dr. Wee emphasized the importance of protecting at-risk individuals from RSV through proper hygiene practices and seeking medical advice. He urged the public to maintain good personal hygiene, stay home when unwell, and wear a mask if symptomatic to prevent the spread of all RVIs.

Overall, the studies conducted by SGH researchers shed light on the severity of RSV and its impact on long-term health. Further research and awareness are essential to effectively combat this respiratory virus and protect vulnerable populations.