Influenza B-associated acute myositis in a child in Sri Lanka: a case report

Influenza-associated myositis is an important differential diagnosis for children presenting with muscle pain and gait disturbances during the influenza season. Early recognition and laboratory confirmation of the condition can prevent unnecessary investigations and facilitate prompt patient management. This case highlights the clinical and diagnostic aspects of influenza B-associated myositis, underscoring the importance of considering viral etiologies in pediatric patients with acute myositis.