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Query is a dynamic tool that allows public health professionals to instantly explore, manipulate and analyze health data using pre-defined reports and variables. Access to Query is limited to authorized public health professionals.


These tools may contain confidential and sensitive information, and are restricted to public health professionals who take part in public health decision-making and have relevant skills and knowledge to interpret this data.

To gain access, please ensure you meet the criteria above and are registered on our website.
Once registered, send an e-mail to using the subject line “Registered User – Request Query Access – (Your PHU or organization's name)”.

If approved, a confirmation will be sent to your account email.

Infectious Diseases (ID) Query


ID Query focuses on aggregated infectious disease data extracted from the integrated Public Health Information System (iPHIS). The data are refreshed weekly and includes summarized counts of reportable disease cases from January 1, 2005. No personal health information is included.





Health care-associated infection (HAI) Query


HAI Query focuses on aggregated health care-associated infections extracted from the Hospital Self Reporting Initiative (SRI) database. These reports include data for Clostridium difficile infection (CDI), methicillin-resistant Staphylococcus aureus (MRSA) bacteremias and vancomycin-resistant enterococcus (VRE) bacteremias. The data are refreshed monthly (CDI) or quarterly (MRSA and VRE). No personal health information is included.





Page last reviewed:  
Page last updated: 18/05/2017 11:20 AM
Uncontrolled print copy. Valid only on day of Print: [date]
Page updated on [date/time] 18/05/2017 11:20 AM
© , Ontario Agency for Health Protection and Promotion