Fig. 1
From: The Pertussis resurgence: putting together the pieces of the puzzle

Pertussis cases in the US, 1940–2012. Data are from the Centers for Disease Control and Prevention via the National Notifiable Diseases Surveillance System
From: The Pertussis resurgence: putting together the pieces of the puzzle
Pertussis cases in the US, 1940–2012. Data are from the Centers for Disease Control and Prevention via the National Notifiable Diseases Surveillance System