Neonatal respiratory syncytial virus infection

Area of Science:

• Pediatrics
• Infectious Diseases
• Neonatology

Background:

• Respiratory syncytial virus (RSV) infections are traditionally considered uncommon in the first month of life.
• Neonatal units may be vulnerable to RSV outbreaks during community epidemics.

Purpose of the Study:

• To prospectively investigate the incidence and characteristics of RSV infection in neonates during a community outbreak.
• To assess the clinical presentation and risk factors associated with RSV in this age group.

Main Methods:

• Prospective study of 82 neonates in neonatal units during an RSV outbreak.
• Data collection included hospitalization duration, viral acquisition, clinical signs, gestational age, birth weight, and viral shedding.
• Staff infection rates were also monitored to assess transmission dynamics.

Main Results:

• 35% of hospitalized neonates acquired RSV, with infected infants having lower gestational age and birth weight.
• Illness presentation was often atypical, particularly in infants under three weeks, with less lower-respiratory-tract involvement and lower viral loads.
• RSV shedding correlated with postnatal age, and 34% of healthcare staff acquired the infection, suggesting a significant role in transmission.

Conclusions:

• RSV can readily infect neonates, often presenting with atypical symptoms that may be overlooked.
• The high rate of infection in staff underscores their role in nosocomial RSV spread.
• Further research is needed to understand and prevent RSV in vulnerable neonatal populations.