[The first confirmed pediatric case with H7N9 avian influenza virus infection in China]

Mei Zeng1, Yan-feng Zhu1, Yan-ling Ge1

  • 1Department of Infectious Diseases, Children's Hospital of Fudan University, Shanghai 201102, China.

Insights

Avian influenza A (H7N9) virus infection in children presents with a milder clinical course compared to adults. Further surveillance is needed to understand the epidemiology and exposure sources in pediatric cases.

Area of Science:

  • Virology
  • Pediatric Infectious Diseases
  • Epidemiology

Background:

  • Avian influenza A (H7N9) virus poses a potential threat to public health, with a need to understand its impact on pediatric populations.
  • Limited data exists on the clinical and epidemiological characteristics of H7N9 infection in children.

Observation:

  • A previously healthy 3.6-year-old boy in Shanghai was diagnosed with influenza A (H7N9) virus infection.
  • The child presented with mild symptoms including fever and rhinorrhea.
  • The virus was detected via real-time reverse transcriptase PCR and virus culture from a nasopharyngeal sample.

Findings:

  • The pediatric case exhibited a relatively mild clinical course compared to adult H7N9 infections.
  • No secondary infections were found among 16 monitored contacts.
  • The source of infection and specific exposure details for the child remain unknown.

Implications:

  • Understanding the clinical spectrum of H7N9 in children is crucial for public health preparedness.
  • Continued surveillance for mild, severe, and subclinical H7N9 infections in children is essential.
  • Further research is needed to elucidate transmission dynamics and identify exposure risks in pediatric populations.
Abstract