Update on emerging infections: News from the Centers for Disease Control and Prevention. Primary amebic meningoencephalitis-Arizona, Florida, and Texas, 2007.

Editor’s note: This article is part of a regular series on emerging infections from the Centers for Disease Control and Prevention (CDC) and the EMERGEncy ID NET, an emergency department–based and CDC-collaborative surveillance network. Important infectious disease public health information with relevance to emergency physicians is reported. The goal of this series is to advance knowledge about communicable diseases in emergency medicine and foster cooperation between the front line of clinical medicine and public health agencies.