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Resources for Preventing Infection Prevention and Control (IPAC) Lapses
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​An IPAC lapse occurs when there is deviation from IPAC best practices resulting in possible infectious disease transmission to patients, clients and/or staff. The best practices are identified in the Provincial Infectious Diseases Advisory Committee’s (PIDAC) documents.

Public health units investigate IPAC lapses and provide support and resources as outlined in the Ministry of Health and Long-Term Care’s (MOHLTC) Ontario Public Health Standards and Protocols. Some regulatory colleges may also investigate IPAC lapses. Public Health Ontario (PHO) provides scientific and technical advice to local public health units during an investigation including consultations and risk assessments, as required.

PHO has developed resources below to support the prevention of IPAC lapses and aide in IPAC lapse investigations.

New! Infection Prevention and Control in Personal Service Settings


Personal services are a growing industry in Ontario and PHO has a new guide for support. The Guide for Infection Prevention and Control in Personal Service Settings (PSS), 3rd edition provides public health units with infection prevention and control practices when working with personal service setting (PSS) operators. Additional resources including reference materials, signage, and related links are also available on our new PSS page.
For information please contact IPAC Regional Support Team or email us at


Updated! Frequently asked questions

Antimicrobial stewardship strategies

PHO has compiled a list of frequently asked IPAC lapse questions pertaining to specific IPAC topics such as reprocessing, medication administration, laboratory responsibilities, and office design/facilities. The recent update includes additional guidance on the use of process challenge devices (PCDs) and chemical indicators (CIs). If you have any questions please contact

Updated November, 2018


IPAC Checklists

Updated! ​Antimicrobial stewardship strategiesClinical Office Practice

The IPAC checklists for clinical office practice were developed to promote consistency when conducting IPAC lapse investigations in clinical office practices involving, but not limited to, physicians, chiropodists and podiatrists, and midwives. They may also be used as a self-assessment tool to assess current IPAC practices. Recent updates include changes to: legislative requirements, risk levels, risk definitions, and formatting for ease of reference.  

IPAC Checklist for Clinical Office Practice - Core Elements
IPAC Checklist for Clinical Office Practice - Reprocessing
IPAC Checklist for Clinical Office Practice - Endoscopy

Updated November 2018


​DAntimicrobial stewardship strategiesental Practice

These IPAC checklists were developed to promote consistency when conducting IPAC lapse investigations in dental practices. They may also be used as a self-assessment tool to assess current IPAC practices.

IPAC Checklist for Dental Practice - Core Elements
IPAC Checklist for Dental Practice - Reprocessing


Priority IPAC practices

Two areas of IPAC practices most commonly identified as needing attention during lapse consultations and risk assessments are reprocessing and medication administration.

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Achieving effective disinfection and sterilization is essential for ensuring that medical and surgical equipment/devices do not transmit infectious pathogens to patients, clients or staff.

Best Practices for Cleaning, Disinfection and Sterilization of Medical Equipment/Devices

Reprocessing in the Community Course

Photo of a needle 

Medication administration

Transmission of blood-borne pathogens (Hepatitis B,
Hepatitis C and HIV) can occur from unsafe and improper medication administration by injection and infusion. See below for resources that can help you reduce this risk.

Top 5 high risk practice recommendations and guidance

Guidance for using multidose vials


Page last reviewed:
Page last updated: 2019-01-14 2:11 PM
Uncontrolled print copy. Valid only on day of Print: [date]
Page updated on [date/time] 2019-01-14 2:11 PM
© , Ontario Agency for Health Protection and Promotion