Author/Authors :
Cynthia G Whitney، نويسنده , , Tamar Pilishvili، نويسنده , , Monica M Farley ، نويسنده , , William Schaffner، نويسنده , , Allen S Craig، نويسنده , , Ruth Lynfield، نويسنده , , Ann-Christine Nyquist، نويسنده , , Kenneth A Gershman، نويسنده , , Marietta Vazquez، نويسنده , , Nancy M Bennett، نويسنده , , Arthur Reingold، نويسنده , , Sue Ann Thomas، نويسنده , , Mary P Glode، نويسنده , , Elizabeth R Zell، نويسنده , , James H Jorge، نويسنده ,
Abstract :
Background
When seven-valent pneumococcal conjugate vaccine was introduced in the USA, many children were vaccinated on schedules that differed from those tested in clinical trials. Our aim was to assess the effectiveness of the vaccine against various pn
