Infective Basis of Acute and Recurrent Acute Sinusitis

Sinusitis is a common complication of viral upper respiratory infection and allergic inflammation. Although the paranasal sinuses are believed to be sterile under normal circumstances, the upper respiratory tract-specifically the nose and nasopharynx-are heavily colonized by normal flora. Despite differences in normal nasal flora, the acute bacterial pathogens that cause acute sinusitis are similar in adults and children.