The idea of Health Portals is to make it easier for people to get health services, and also to create an awareness about public health. They also do vaccination campaigns. These health portals are done together with private health and public health agencies in the US.
Thematic Meeting Nov. 20, 2013
For more information (in Spanish): http://portal.salud.gob.mx/
In English: http://www.cdc.gov/usmexicohealth/