The Texas Public Health Information Network (TxPHIN) is an online portal containing a collection of applications, such as the Health Alert Network and Document Sharing, which provide users with a range of functions to carry out public health preparedness goals and duties. Examples of these functions include call down and alerting, bio.surveillance tools and communication systems designed to enhance collaboration between public health preparedness stakeholders.

PHIN is a national initiative created by the Centers for Disease Control and Prevention to increase the capacity of public health to exchange data and information electronically across organizational and jurisdictional boundaries. This is done by promoting the use of standards and defining functional and technical requirements. More information about the CDC's PHIN concept is available at The Texas PHIN portal is an implementation of CDC's PHIN concept, plus much more.

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