Infectious diseases

Read our publications related to this topic.

Journal Articles

Journal Article

10/06/2026

Four methods for estimating hepatitis C incidence using extant testing data

McFarlane WJ, Flemming JA, Brogly SB, Peng Y. PLoS One. 2026; 21(6): e0335115.

Journal Article

20/05/2026

Risk of severe influenza in people with a history of injection drug use in Ontario: a population-based nested case control study

Smith CS, Mohmand Z, Hrycyshyn A, Djerboua M, Mann Y, Flemming JA, Gill SS, Bai AD; Queen’s University Internal Medicine Resident Research Initiative. J Infect. 2026; 93(1): 106764. Epub 2026 May 20.

Journal Article

19/05/2026

Uptake of prenatal syphilis screening and its determinants in Ontario, Canada: a population-based retrospective cohort study

Featherstone A, Wilms H, Ospina MB, Velez MP, Carter M, Greenwald ZR, Richard-Greenblatt M, Yee S, Flemming J, Saeed S. CMAJ. 2026; 198(19): E725-36.

Journal Article

24/04/2026

Healthcare utilization and HIV burden among Black communities in Ontario: a matched cohort study

Mbuagbaw L, Rezene F, Tharao W, Husbands W, Shahin R, Nyambi A, Lawson DO, Kihembo M, Aden M, Ongolo-Zogo C, Dabone C, Boamah S, Jackson-Best F, Dryden O, Nelson L, Verma G, Kopp A, Lofters A. Can J Public Health. 2026; Apr 24 [Epub ahead of print].

Journal Article

20/04/2026

Cessation of amoxicillin-clavulanate selective reporting and association with antibiotic prescribing and C. difficile infection in Ontario, Canada, 2017-2024: an ecological study

Wong MK, Daneman N, Langford BJ, Leung V, Schwartz KL, Almohri H, Goneau LW, Brown KA. Clin Microbiol Infect. 2026; S1198-743X(26): 00199-0. Epub 2026 Apr 20.

Journal Article

24/03/2026

HIV-sex interaction effect on risk of hepatitis C-related cirrhosis, decompensation, and hepatocellular carcinoma

McFarlane WJ, Brogly SB, Flemming JA, Martinez-Cajas J, Peng Y. AIDS. 2026; Mar 24 [Epub ahead of print].

Journal Article

17/03/2026

Incidence and outcomes of candida bloodstream infection in solid organ transplant recipients

Bitterman R, Kus JV, Verma G, Kopp A, Husain S, Kwong JC, Hosseini-Moghaddam SM. JAMA Netw Open. 2026; 9(3): e261467.

Journal Article

14/03/2026

Antibiotic and nonantibiotic drugs associated with Clostridioides difficile infection risk: a pharmacopoeia-wide case-cohort study

Brown KA, Coburn B, Hernandez A, Langford BJ, Leung V, MacFadden D, Rooney AM, Schwartz KL, Daneman N. J Infect Dis. 2026; Mar 14 [Epub ahead of print].

Journal Article

10/02/2026

Human papillomavirus (HPV) vaccine coverage and associated sociodemographic factors among individuals eligible for publicly funded vaccine in Ontario, Canada from 2007 to 2023: a Canadian immunization research network study

Grewal R, Alessandrini J, Wilson SE, Hernandez A, Basta NE, Burchell AN, Deeks SL, Lim GH, Navarro C, Ogilvie G, Paul LA, Buchan SA. Vaccine. 2026; 9;76:128303. Epub 2026 Feb 10.

Journal Article

06/02/2026

COVID-19 vaccine effectiveness in patients with lung cancer: challenges in the Omicron era

Hosseini-Moghaddam SM, Swayze S, Kwong JC, Shepherd FA. BMC Infect Dis. 2026 Feb 6 [Epub ahead of print].

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News Releases

News Release

19/05/2026

One in five pregnancies miss timely syphilis screening in Ontario

One in five pregnancies in Ontario did not receive syphilis screening in the first trimester. Furthermore, delayed screening was more common among equity-deserving populations.

News Release

11/09/2024

Primary care office visits in Ontario declined by almost 80 per cent during the first months of the COVID-19 pandemic but virtual visits increased more than 50-fold

News Release

12/01/2021

People experiencing homelessness are more likely to be infected with and die of COVID-19 than the general Ontario population

News Release

26/10/2020

Ontario should vaccinate newborns for hepatitis B, study suggests

News Release

09/09/2020

New ICES report shows immigrants, refugees and other newcomers account for nearly 44% of all COVID-19 cases in Ontario

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Research Programs and appointed ICES Scientists

ICES scientists are appointed to the ICES Research Program which best fits their interests and, as such, become members of a network of health services researchers from across Ontario.

ICES Scientists Research Programs

Infectious diseases

Journal Articles

Four methods for estimating hepatitis C incidence using extant testing data

Risk of severe influenza in people with a history of injection drug use in Ontario: a population-based nested case control study

Uptake of prenatal syphilis screening and its determinants in Ontario, Canada: a population-based retrospective cohort study

Healthcare utilization and HIV burden among Black communities in Ontario: a matched cohort study

Cessation of amoxicillin-clavulanate selective reporting and association with antibiotic prescribing and C. difficile infection in Ontario, Canada, 2017-2024: an ecological study

HIV-sex interaction effect on risk of hepatitis C-related cirrhosis, decompensation, and hepatocellular carcinoma

Incidence and outcomes of candida bloodstream infection in solid organ transplant recipients

Antibiotic and nonantibiotic drugs associated with Clostridioides difficile infection risk: a pharmacopoeia-wide case-cohort study

Human papillomavirus (HPV) vaccine coverage and associated sociodemographic factors among individuals eligible for publicly funded vaccine in Ontario, Canada from 2007 to 2023: a Canadian immunization research network study

COVID-19 vaccine effectiveness in patients with lung cancer: challenges in the Omicron era

News Releases

One in five pregnancies miss timely syphilis screening in Ontario

Single dose of mpox vaccine effective in preventing infection, study finds

New study confirms safety and benefits of maternal COVID-19 vaccination for newborns

The impact of reopening schools on community transmission of COVID-19 in January 2021

Statement by ICES on vaccine effectiveness preprint

Pandemic impacts postpartum mental health

Primary care office visits in Ontario declined by almost 80 per cent during the first months of the COVID-19 pandemic but virtual visits increased more than 50-fold

People experiencing homelessness are more likely to be infected with and die of COVID-19 than the general Ontario population

Ontario should vaccinate newborns for hepatitis B, study suggests

New ICES report shows immigrants, refugees and other newcomers account for nearly 44% of all COVID-19 cases in Ontario

Research Programs and appointed ICES Scientists

Infectious diseases

Journal Articles

Four methods for estimating hepatitis C incidence using extant testing data

Risk of severe influenza in people with a history of injection drug use in Ontario: a population-based nested case control study

Uptake of prenatal syphilis screening and its determinants in Ontario, Canada: a population-based retrospective cohort study

Healthcare utilization and HIV burden among Black communities in Ontario: a matched cohort study

Cessation of amoxicillin-clavulanate selective reporting and association with antibiotic prescribing and C. difficile infection in Ontario, Canada, 2017-2024: an ecological study

HIV-sex interaction effect on risk of hepatitis C-related cirrhosis, decompensation, and hepatocellular carcinoma

Incidence and outcomes of candida bloodstream infection in solid organ transplant recipients

Antibiotic and nonantibiotic drugs associated with Clostridioides difficile infection risk: a pharmacopoeia-wide case-cohort study

Human papillomavirus (HPV) vaccine coverage and associated sociodemographic factors among individuals eligible for publicly funded vaccine in Ontario, Canada from 2007 to 2023: a Canadian immunization research network study

COVID-19 vaccine effectiveness in patients with lung cancer: challenges in the Omicron era

News Releases

One in five pregnancies miss timely syphilis screening in Ontario

Single dose of mpox vaccine effective in preventing infection, study finds

New study confirms safety and benefits of maternal COVID-19 vaccination for newborns

The impact of reopening schools on community transmission of COVID-19 in January 2021

Statement by ICES on vaccine effectiveness preprint

Pandemic impacts postpartum mental health

Primary care office visits in Ontario declined by almost 80 per cent during the first months of the COVID-19 pandemic but virtual visits increased more than 50-fold

People experiencing homelessness are more likely to be infected with and die of COVID-19 than the general Ontario population

Ontario should vaccinate newborns for hepatitis B, study suggests

New ICES report shows immigrants, refugees and other newcomers account for nearly 44% of all COVID-19 cases in Ontario

Research Programs and appointed ICES Scientists

One in five pregnancies miss timely syphilis screening in Ontario