Distinguishing coronavirus disease 2019 from influenza in children remains challenging

Area of Science:

• Pediatric Infectious Diseases
• Respiratory Viral Infections
• Comparative Medicine

Background:

• Co-circulation of SARS-CoV-2 and influenza viruses presents diagnostic challenges in children.
• Influenza-like illness (ILI) symptoms are often non-specific, complicating differential diagnosis.
• Accurate differentiation is crucial for appropriate patient management and public health strategies.

Purpose of the Study:

• To systematically review and compare the clinical features, outcomes, and diagnostic findings of COVID-19 versus influenza in pediatric populations.
• To identify key differences and similarities that can assist clinicians in differentiating these infections.
• To provide an evidence-based summary for managing respiratory illnesses in children during periods of viral co-circulation.

Main Methods:

• Systematic literature search for studies comparing pediatric COVID-19 and influenza.
• Analysis of clinical presentation (fever, cough, etc.), disease severity, and outcomes.
• Comparison of laboratory markers (e.g., inflammatory markers, viral PCR) and radiological findings (e.g., chest X-ray, CT scans).

Main Results:

• Clinical manifestations of COVID-19 and influenza in children often overlap, including fever and cough.
• Certain laboratory markers and radiological patterns may show trends suggestive of one infection over the other, but with significant variability.
• Outcomes, including hospitalization rates and severity, can differ, necessitating careful evaluation.

Conclusions:

• Differentiating pediatric COVID-19 from influenza based solely on clinical symptoms is difficult.
• Integrated analysis of clinical, laboratory, and radiological data is essential for accurate diagnosis.
• Further research is needed to refine diagnostic criteria for these co-circulating respiratory viruses in children.