The Philadelphia Department of Public Health (PDPH) Division of Disease Control conducts annual data analysis of vaccination coverage using vaccination surveillance data collected in PhilaVax: Philadelphia's Immunization Information System.

PhilaVax is a confidential, population-based, computerized, web-based system that collects and consolidates immunization information for anyone receiving vaccine from Philadelphia health care providers. Begun in 1991 with mandatory reporting of all vaccinations administered to children age 6 years and younger, PhilaVax reporting was expanded in 2006 to include children 7 to 18 years of age, and again in 2009 to include adults 19 years and older.

While PhilaVax is now a lifespan immunization registry of Philadelphia residents, the phased-in reporting of adolescent children and adults, coupled with gaps in provider reporting of vaccination, may result in under-representation of vaccine coverage levels, depending on age and type of vaccine.


Click here for more information on immunizations

Click here for vaccine coverage data from the Centers For Disease Control and Prevention (CDC) National Immunizations Survey(NIS)

These data summaries below display the provisional, year-to-date counts of vaccination coverage. All surveillance data are preliminary and are not intended for further distribution. Click here to download the latest PDPH report for vaccination coverage.

Overview of Vaccinations By Year