Respiratory Syncytial Virus Infection Diagnosis and Prevention

Clinical Presentation

The American Academy of Pediatrics recommends suspecting RSV infection in infants and young children presenting with new onset of respiratory symptoms, including cough, sore throat, shortness of breath, or coryza, particularly during the cold season, with consideration of epidemiological factors such as community outbreaks or contact with infected individuals 1, 2
Cough is present in 93% of RSV cases, according to the American College of Chest Physicians 3
Nasal discharge/congestion (coryza) is a common symptom of RSV infection, as noted by the Infectious Diseases Society of America 1, 2
Shortness of breath or dyspnea is a symptom of RSV infection, especially in high-risk populations, as reported by the Centers for Disease Control and Prevention 1, 2
Sore throat is a symptom of RSV infection, often accompanied by other respiratory symptoms, according to the American Academy of Family Physicians 1, 2
Fever may not be present in all RSV cases, but its absence does not rule out the infection, as stated by the American College of Chest Physicians 3
Apnea, particularly in premature infants, is a potential presentation of RSV infection, as noted by the American Academy of Pediatrics 5, 3

The Centers for Disease Control and Prevention recommend suspecting RSV during seasonal outbreaks, typically December through March in the Northern Hemisphere 4, 2
RSV infection should be considered when there are known outbreaks in the community, as reported by the Infectious Diseases Society of America 1, 2
Higher suspicion is warranted when there is an epidemiological link to human-to-human transmission, such as contact with a visitor, another patient, or healthcare worker, according to the Centers for Disease Control and Prevention 1, 2

The American Academy of Pediatrics recommends maintaining a higher index of suspicion for RSV infection in infants, especially those under 1 year of age, as well as premature infants 4
The Centers for Disease Control and Prevention note that elderly patients (≥65 years, particularly ≥75 years) are at higher risk for severe RSV infection 6, 8
Patients with chronic cardiac or pulmonary disease are at higher risk for severe RSV infection, as reported by the American Heart Association and the American Thoracic Society 4, 6, 8
Immunocompromised individuals are at higher risk for severe RSV infection, according to the Infectious Diseases Society of America 1, 4

The Centers for Disease Control and Prevention recommend laboratory confirmation of RSV infection during RSV season for high-risk patients presenting with respiratory symptoms 9
The Infectious Diseases Society of America suggests considering testing when a patient meets the clinical criteria (new onset of symptoms with at least one respiratory symptom) and has an epidemiological link 1, 2
Nucleic acid amplification testing (NAT) is preferred due to higher sensitivity, as reported by the American Society for Microbiology 1, 2
Direct virus antigen detection provides rapid results but has lower sensitivity (80-95%), according to the Centers for Disease Control and Prevention 4
Virus isolation by cell culture is considered standard but has a longer turnaround time, as noted by the American Society for Microbiology 1, 2

The Centers for Disease Control and Prevention recommend implementing contact isolation precautions when RSV is suspected 7, 9
Proper hand hygiene is essential to prevent transmission, as reported by the World Health Organization 7, 9
Restricting visitors with respiratory symptoms from accessing patients can help prevent transmission, according to the Infectious Diseases Society of America 7