Skip to main content

Measles cases are on the rise globally and here in Illinois the number is increasing as well. Vaccines are 97% effective in preventing this highly contagious disease.  To learn more about this infection and get information on vaccination, go to  Learn how to identify measles and the safe and effective vaccine that can prevent this potentially life-threatening infection for adults and children. 


The Health Alert Network, HAN/SIREN, provides the tools and capacity for rapid, reliable, and secure web-based alerting as well as communication and organization-based health information sharing and collaboration.  Siren is the emergency planning, alerting, and notification system for IDPH.  It serves as a single central point for finding, creating, and sharing information.  It also provides emergency preparation for federal, state and local offices.  In short, SIREN is an all hazards approach to emergency preparedness, response, outbreak notification and investigation, and recovery.

For instructions on registration for SIREN/HAN please select your affiliation from the options below

All non-medial professionals and Media personnel

  • Non-Hospital Physicians
  • Clinical Medical Staff
  • Infection Control
  • Hospital Physicians
  • Nurse Practitioners
  • Physician Assistants
  • Nurses
  • Internal Medicine
  • Hospitalists
  • Vaccines for Children (VFC) Providers

All Local Health Department Employees

  • Assisted Living Employees
  • Long Term Care Employees
  • Medical Clinics
  • Rural Health Clinics
  • Pediatric Clinics
  • Orthopedic Clinics
  • Independent Pharmacists
  • Retail Pharmacists
  • State Vaccination Providers
  • Regional Offices of Education - Regional Superintendents
  • School Administration - Health Nurses and Programs 
  • University Public Health Officer - Health Care Worker - Campus Safety
  • Fire Department Staff
  • County EMS Staff
  • Private EMS Staff
  • Local EMA's
  • Police
  • ESDA
  • Administrators
  • ERCs & Security
  • VFC Coordinators (Vaccines for Children)
  • Administrators
  • Emergency Preparedness and Response
  • PRA (Portal Registration Authority)