Public Health ON
@PublicHealthON
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Public Health Ontario is a Crown corporation dedicated to protecting and promoting the health of all Ontarians and reducing inequities in health.
Toronto, ON
Joined July 2009
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Last Seen Profiles
Find our evidence brief on COVID-19 Omicron Sublineages BA.4 and BA.5: Evidence and Risk Assessment here:
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A well-functioning HVAC system is part of a multi-layered strategy to lower the risk of COVID-19 infection. Learn more in our new Focus On: Heating, Ventilation and Air Conditioning (HVAC) Systems in Buildings and COVID-19.
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We compared COVID-19 cases with Omicron to closely matched cases with Delta and found the risk of hospitalization or death was 54% lower for Omicron. However, given Omicron is more transmissible, we expect an increase in hospitalizations. Learn more:
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Our new enhanced epi summary looks at early dynamics of Omicron in Ontario from November 1 to December 9, 2021. It is currently estimated that each Omicron case is infecting 7.7 times more individuals than Delta. Learn more:
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How are the social determinants of health distributed in your region? Find out in our new interactive Map:
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Eligible COVID-19 samples that tested positive during initial diagnostic testing will now be tested for both the N501Y and E484K mutations. Read our blog post to learn more:
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Find the latest Ontario information on COVID-19. Public: . Health Professionals: Ministry of Health and Public Health Ontario .
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COVID-19 rapid tests will play an important role in this pandemic as we go forward. Their strongest value lies in their ability to reduce turnaround time of test results, increase access, and offer more testing capacity to the provincial testing system. (1/4)
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You've been vaccinated! Now what? Until vaccines are widely available, keep practicing protective measures such as washing your hands, physical distancing, wearing a mask and following local public health guidance. Learn more here:
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With the current Omicron risk, it is recommended that mask fit and filtration are optimized. This can be achieved by wearing a non-fit tested respirator or well-fitted medical mask. Visit our evidence brief on community masking to learn more:
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(1/6) We have released the new Ontario Respiratory Virus Tool, an interactive report that provides a comprehensive view of respiratory virus activity in Ontario, including COVID-19, influenza, and other respiratory viruses.
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Download raw data on different social determinants of health indicators in our new interactive tool:
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Effective May 9, 2022, Dr. Fahad Razak will become the new Scientific Director for the Ontario COVID-19 Science Advisory Table.
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Masking is one component in a multi-layer strategy to protect against COVID-19. Well fitted medical masks or respirators may provide better protection but cloth masks are generally more comfortable to wear for longer periods. See our fact sheet:
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PHO and
@UofT_dlsph
are pleased to confirm that PHO will begin hosting the Ontario Science Advisory Table effective April 4. This transition will establish a permanent home, enhance provincial capacity and continue connections with the academic community.
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"Our collective goal should be to create the strongest public health system in the world" - Dr. Peter Donnelly at
#TOPHC2016
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Thanks for coming to PHO, grade 9s! These talented students created infographics on distracted driving 4 Take Your Kids to Work Day
#TYKTWD
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It's World Antibiotic Awareness week – remember, not all bacteria are bad. Let's use antibiotics wisely.
#saveABX
#antibioticawarenessweek
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Vitamin D plays an important role supporting our immune systems. However, there isn’t clear evidence that taking vitamin D prevents
#COVID19
or reduces severity of disease. Learn more:
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Newly updated: Mask Wearing in Children and COVID-19 – What We Know So Far. Check it out:
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We're grateful for our Ontario doctors and their expertise and dedication to patient care. Join us in celebrating the work they do and
#ShineALightForThem
by turning on a light tonight at 9 p.m. ET.
#DoctorsDay
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Need
#HealthEquity
resources? Did you know our new Health equity impact assessment modules are free? Pass it on!
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Great discussion on vaccine hesitancy with a multidisciplinary panel this morning at
#ArtSciImmunize
!
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(1/4) The Ontario Public Health Emergencies Science Advisory Committee (OPHESAC) has released a new resource: Scientific Report: Strengthening Ontario’s Respiratory Viral Surveillance System.
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New Ontario Health Profile just released! Antimicrobial Resistance: A public health threat
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Just released! Evaluating Health Promotion Programs: workbook and audio presentations
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Today is International Overdose Awareness Day, where we remember those lost, recognize the grief of those left behind, and work to reduce stigma. Find out how the pandemic has impacted opioid-related overdoses and deaths in Ontario
#IOAD
#EndOverdose
:
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Know the difference between equity and equality in health? Learn
#healthequity
fundamentals in our HEIA modules:
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UPDATED: In our matched study of over 11,000 Omicron cases in Ontario, the risk of hospitalization or death was 65% lower compared to Delta cases. Learn more:
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As
#LabWeek
wraps up, we’d like to thank our incredible lab staff across the province for all of their hard work, flexibility and dedication over the past year. It has not been easy but they continue to rise to the challenge.
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Vaccines are effective against hospitalization with Delta, but there is evidence of symptomatic disease in partially vaccinated people. See our updated evidence brief to learn more:
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#DYK
The microbiome is the environment of trillions of mostly beneficial microorganisms living on and within you? Taking a course of antibiotics can disrupt the protective effects of your microbiome and contribute to antibiotic resistant bacteria.
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TEXT MESSAGE SCAM: PHO is advising the public of a text message scam currently circulating that appears to be offering a monetary reward for receiving a COVID-19 vaccine or following public health measures. We did not send this text message. Do not reply and delete immediately.
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There is no health without
#mentalhealth
. Check out our mental health infographic:
#BellLetsTalk
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Everyone has a role to play to keep our communities safe and to help prevent the spread of infectious diseases. This is especially true when visiting any and all health care settings.
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If you’re concerned that you may have been exposed to, or are experiencing symptoms of
#COVID19
, please visit
@ONThealth
’s self-assessment tool at: .
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There has been a 40% increase in opioid-related deaths since the onset of the
#COVID19
pandemic. Learn more in our new report with
@ODPRN_Research
the Office of the Chief Coroner and
@drugpolicyctr
.
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Congratulations to PHO’s
@DrKevinSchwartz
on receiving the
@AMMICanada
Young Investigator Award for his work in advancing antimicrobial stewardship.
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Recent research led by PHO’s
@DrKevinSchwartz
found that providing primary care physicians with a peer-comparison letter on their antibiotic prescribing behaviour resulted in a reduction in total antibiotic use. Read full report in
@JAMAInternalMed
here:
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These tests do perform differently than lab based PCR tests. That’s why the initial roll out of the rapid tests in Ontario includes concurrent lab based PCR testing so that we can both quickly deploy the tests and ensure that we have an extra layer of safety until we (2/4)
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What are the potential impacts of wearing masks for children? Here is what we know so far about mask wearing behaviour in children:
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How are Ontario laboratories screening for
#antimicrobial
resistant organisms? Read our new report to find out!
#AMR
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Reminder! Our Whole Genome Sequencing and Wastewater Surveillance reports will resume the week of January 9, 2023. To see all of PHO's surveillance reports, visit our Data and Surveillance page:
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Ontario unveiled the new Interactive Opioid Tool today. See it now!:
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This World Pharmacists Day, we're celebrating all of the trusted pharmacists across Ontario and the incredible work they have done throughout the COVID-19 pandemic.
#WPD2021
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Emergency Preparedness Week is underway! From May 5 to 11, EP Week focuses on the actions individuals can take to ensure their readiness for emergency situations.
#beemergencyready
#EPweek
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What's the status of
#AntimicrobialStewardship
programs in Ontario? See the new interactive ASP Comparison Tool:
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We’ve added new information to our Infectious Disease Trends in Ontario interactive tool, which was previously known as the Reportable Disease Trends in Ontario tool. Check out over 10 years of data on diseases of public health significance in Ontario .
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Today is International Women’s Day, a day to celebrate achievements by women and girls all over the world. Today, PHO celebrates the many brilliant, dynamic women across our organization who contribute to the achievement of our mission.
#IWD2022
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We’re committed to evidence-based vector-borne disease surveillance. See our latest systematic review - Companion Animals and Tick-borne Diseases:
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Brush up on key Health Promotion theories, definitions and more – our HPFC is complete! All modules are online:
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Hand hygiene is the single most important way to prevent infections. Our How to Wash Your Hands Fact Sheet is available in over 20 languages:
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How well are Ontario parents supporting healthy eating in children? Find out!
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PHO’s serosurveillance project will help Ontario evaluate the effectiveness of its pandemic response and take steps to prevent further spread of COVID-19. Visit for details.
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better understand how these tests perform. It’s also important to remember that testing does not replace important prevention measures like hand washing, physical distancing, and wearing a mask when physical distancing can’t be maintained. (3/4)
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Protecting yourself and others from infection is the first step to stopping the spread of COVID-19. (4/4)
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Check out COVID-19 wastewater signals across Ontario in our updated report. Updated every Thursday at 4:30 p.m. ET
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Track the latest influenza activity in Ontario with the newly updated Ontario Respiratory Pathogen Bulletin interactive tool. Visit to get started.
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Pride Month is an opportunity to honor 2SLGBTQ+ history, celebrate diversity, and work towards a more inclusive future, where everyone is treated with dignity, respect, and equality. Learn more about
#PrideMonth
in Ontario:
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Our staff have been collaborating with
@UWPharmacy
on their new online course: Antimicrobial Stewardship in Primary Care. This course supports health care providers in community settings how to better manage the use of antibiotics. Check it out:
Launched today: Antimicrobial Stewardship in Primary Care - an online CE course for prescribers & pharmacists to help HCPs optimize antibiotic use in common clinical scenarios. Designed by Canadian experts & supported by the Public Health Agency of Canada!
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(1/5) Check out our updated COVID-19 Wastewater Surveillance report, which presents the wastewater signal for Ontario, as well as its sub-regions.
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For an overview of respiratory viruses in Ontario from September 25 to October 1, 2022, including influenza and COVID-19, in our new weekly report:
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Grab your lunch a join us tomorrow for a discussion on the composition and functions of the human microbiome, its relationship to human disease and the impact of antimicrobials on these functions with Dr. Bryan Coburn.
#PHORounds
Register now at:
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Physical distancing does not mean becoming socially isolated. Be sure to take care of your mental health and help to support others, safely.
#MentalHealthAwarenessWeek
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Passionate about
#healthequity
in
#publichealth
? Spread the word about our new modules! See them here:
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PCR, DNA, RNA, sensitivity, amplification, cycle thresholds…what do they all mean? Check out our blog post to learn about
#PCRtesting
for
#COVID19
:
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Special thanks and congratulations to everyone who collaborated on this study and its authors:
@YasminKhan5
,
@EnRiCH_Collab
,
@UofT_dlsph
,
@utjcb
,
@GenereuxMelissa
,
@DrBonnieHenry
.
How can public health systems prepare for emergencies and disasters? We collaborated on a
@CIHR_IRSC
study to develop a preparedness framework for such events. Learn more in this recently published
@BMC_series
article: .
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Our COVID-19 Wastewater Surveillance in Ontario report provides a weekly update on the COVID-19 wastewater signal in Ontario and sub-regions. Check it out:
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PHO has a new report describing patterns of health services use among people who died of an opioid-related toxicity in Ontario from March-December 2019 vs. 2020 w/
@ODPRN_Research
and Chief Coroner for Ontario/Ontario Forensic Pathology Service
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Hand Hygiene is one of the best defenses against infection of
#COVID19
and other infectious diseases. Check out our hand hygiene resources:
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Wishing all environmental health professionals a happy Environmental Public Health Week!
It's Environmental Public Health Week! From Sept 20-25 we'll be recognizing & celebrating the important work undertaken by environmental public health professionals to keep Canadians safe & healthy.
#ephw2021
#CIPHI
#PublicHealthInspectors
#EnvironmentalHealthOfficers
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Youth in Ontario aren’t getting enough fruits and vegetables – can food skills programs help? Find out:
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(6/6) For COVID-19 wastewater data, please visit our COVID-19 Wastewater Surveillance in Ontario page:
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Just released! See our latest series of Snapshots on Health Equity:
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Evidence-based conversations between physicians and patients about antibiotic use are essential. PHO created a series of infographics to assist in those conversations
#ThinkTwiceSeekAdvice
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Genome sequencing, analysis and epidemiology of SARS-CoV-2 is important for understanding the evolution and spread of SARS-CoV-2 in Ontario. Check out our interactive tool:
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Before you hit the hiking trails, be prepared! Check out our 2022 Ontario Lyme Disease Map to see estimated risk areas where blacklegged ticks have been found.
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Learn more about the circumstances of opioid-related deaths during
#COVID19
in our report with
@ODPRN_Research
, the Office of the Chief Coroner and
@drugpolicyctr
.
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9
Do you want to know more about adverse events following immunization (AEFIs) that are temporally associated with receipt of COVID-19 vaccine and meet the provincial surveillance definitions? Our most recent report provides a comprehensive summary:
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It’s the start of
#AntibioticAwarenessWeek
in Canada! It’s never been more important to make informed choices about antibiotic use.
#BeAntibioticsAware
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We’ve released a new evidence brief that explores the health effects of cannabis exposure in pregnancy and breastfeeding. Visit our website for more information
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Good IPAC practices are important to protect and promote the health and safety of health care staff, as well as the residents they are caring for. Learn more about IPAC Fundamentals:
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Learn how wastewater surveillance can be used to track and monitor COVID-19 and other viruses in our new series, Tell Me More:
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See the latest list created by PHO and
@ChooseWiselyCA
on 6 ways you can use antibiotics wisely:
#SaveABX
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(1/2) NEW! Wastewater Surveillance in Ontario report will be posted to PHO’s Data and Surveillance page weekly starting September 16.
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86% of Ontario parents say they encourage their children to walk or cycle. Learn more:
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