Transient Hyperphosphatasemia Associated with Human Bocavirus Infection

Transient hyperphosphatemia is a rare benign condition in children characterized by elevated serum alkaline phosphatase levels in infancy and childhood without metabolic bone or liver disease. As it can occur with many different conditions, temporary hyperphosphatasia can be seen especially in gastrointestinal, ear, urinary and respiratory tract infections. It is believed to be triggered by a viral infectious disease. It is important to raise the awareness of clinicians on this issue in terms of facilitating the diagnosis and not requiring additional research. Here, a case of transient hyperphosphatasemia with acute bronchiolitis caused by human bocavirus infection is presented.