Case report: A case of severe acute hepatitis of unknown origin.

According to analyses of etiology, clinical features, diagnostic methods, and treatment strategies by summarizing a case of unexplained acute hepatitis recently experienced, we are aiming to provide some information to enrich the clinical experience in diagnosis and treatment of severe acute hepatitis of unknown etiology in young children. A boy, aged 10 years and 6 months old, was admitted to the hospital due to acute abdominal pain, jaundice, and exceptionally high levels of ALT and AST. A range of measures, including patient history, physical examination, and routine laboratory testing, were performed.

[Effect of pertussis vaccination on clinical manifestations of infants and young children with pertussis].

Objective: To study the effect of pertussis vaccination on the clinical manifestations of infants and young children with pertussis.

Methods: A retrospective analysis was performed to investigate the differences in clinical manifestations and peripheral blood cell levels between pertussis children with different pertussis vaccination status.

Results: A total of 1 083 children with pertussisat at age of < 3 years were enrolled, with 551 children in the unvaccinated group and 532 in the vaccinated group.