Respiratory syncytial virus (RSV) infection in children has ceased to be tied to cold months, and cases are now recorded throughout the year. According to Svetlana Rychkova, Doctor of Medical Sciences and Head of the Department for Organizing Pediatric Medical Care at the Federal Medical and Biological Agency (FMBA) in St. Petersburg, older children whose infections may be mild and resemble a common cold often become sources of infection for infants.
These findings were presented by her at an international pediatric congress held in Tashkent. The expert noted that RSV infection is constantly present throughout the year. The main risk group is children from birth to two years old, but teenagers also account for a significant share of cases. In adolescents, RSV can manifest as a mild runny nose, but upon returning home after visiting school and other social groups, they can transmit the virus to younger siblings, leading to severe forms of the disease.
Scale of the problem according to WHO data
According to data from the World Health Organization, which Rychkova presented, RSV causes about 33 million cases of acute lower respiratory tract infections among children under five annually. More than 3.5 million such cases require hospitalization, and over 100 thousand result in death. Furthermore, about half of these deaths occur among infants under six months of age.
Initially, the illness can mimic the symptoms of a common cold, such as rhinopharyngitis, but it can subsequently develop into bronchitis, bronchiolitis, or pneumonia. In some cases, the infection is accompanied by middle ear otitis. Rychkova warned that if RSV infection is suspected or confirmed, a child's condition can deteriorate and become severe or critical within just a few days.
Special risks for infants and long-term consequences
The infection poses a special risk to infants under one year old and premature babies. In the expert's opinion, the mortality rate in these groups can be up to fifteen times higher than in other pediatric age groups. Severe illness can develop not only in infants with very low birth weight but also in children born at 33–35 weeks of gestation.
The consequences of RSV infection can persist later on. Rychkova emphasized that children infected with the virus at an early age are more likely to encounter other acute respiratory infections later. According to data provided by the expert, the risk of developing bronchial asthma in such children can be three to twelve times higher than in those who did not have RSV in their first year of life.
Importance of prevention and immunization
The specialist also highlighted the need to prevent infection. Since RSV spreads through contact, personal hygiene measures, especially regular handwashing, are paramount when caring for infants. She particularly stressed the importance of hygiene and handwashing when caring for young children, especially in their first year of life.
For children in high-risk groups, particularly premature infants, passive immunization is available. Rychkova reported that it can be administered concurrently with routine vaccination. Experts agree that early detection, preventive measures, and careful monitoring of infants can reduce the likelihood of severe disease progression.



