Find out where to get a flu shot on this map built by the City of Philadelphia. It tells you how much the shot costs (most are free) and what you need to bring with you to get it.

Visit the map here.

Chief Data Officer Mark Headd is leading a charge to get cities to standardize their flu shot data, Newsworks reported. Chicago and San Francisco are already on board, with New York City coming soon.

Read the whole Newsworks story here.

The flu shot map uses data that the city made more developer-friendly than it was one year ago, when developer James Bentley made a flu shot map (it’s no longer up) using data that Headd had scraped and posted on BuzzData. The city has now officially released the data and it’s available in API format on GitHub, the developer platform on which the City of Philadelphia is the most active city government of any U.S. city.