All November 2008 newborns of the Ajlun city (ca 3676/year) - equals 250-300 child/month included in the vaccination program in the time period 1.04.2009 to 28.04.2009 will have Nasopharyngeal swab before the first dose of PCV-7 and a second swab before the third dose at 12th month of age, and a third swab 3 months after the third dose. Swabs will be sent to a reference lab at the German-Jordanian University for identification, serotyping, and resistance testing.