Items in AFP with MESH term: Streptococcus pneumoniae
ABSTRACT: Streptococcus pneumoniae causes approximately 3,300 cases of meningitis, 100,000 to 135,000 cases of pneumonia requiring hospitalization and 6 million cases of otitis media annually in the United States. Pneumococcal conjugate vaccine, approved in 2000 for use in the United States, was designed to cover the seven serotypes that account for about 80 percent of invasive infections in children younger than six years. This vaccine demonstrated 100 percent efficacy against invasive pneumococcal disease in the primary analysis of a large randomized, double-blind, controlled trial. In the follow-up analysis, performed eight months after the trial ended, efficacy against invasive disease was found to be 94 percent for the included serotypes. When initiated during infancy, the four-dose vaccination schedule is set at two, four, six and 12 to 15 months of age. The American Academy of Family Physicians recommends routine vaccination of infants, catch-up vaccination of children younger than 24 months and catch-up vaccination of children 24 to 59 months of age with high-risk medical conditions such as sickle cell disease and congenital heart disease.
Diagnosis and Treatment of Otitis Media - Article
ABSTRACT: Diagnostic criteria for acute otitis media include rapid onset of symptoms, middle ear effusion, and signs and symptoms of middle ear inflammation. Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis are the most common bacterial isolates from the middle ear fluid of children with acute otitis media. Fever, otalgia, headache, irritability, cough, rhinitis, listlessness, anorexia, vomiting, diarrhea, and pulling at the ears are common, but nonspecific symptoms. Detection of middle ear effusion by pneumatic otoscopy is key in establishing the diagnosis. Observation is an acceptable option in healthy children with mild symptoms. Antibiotics are recommended in all children younger than six months, in those between six months and two years if the diagnosis is certain, and in children with severe infection. High-dosage amoxicillin (80 to 90 mg per kg per day) is recommended as first-line therapy. Macrolide antibiotics, clindamycin, and cephalosporins are alternatives in penicillin-sensitive children and in those with resistant infections. Patients who do not respond to treatment should be reassessed. Hearing and language testing is recommended in children with suspected hearing loss or persistent effusion for at least three months, and in those with developmental problems.