Infectious diseases

Read our publications related to this topic.

Journal Articles

Journal Article

24/09/2026

Social disparities and the COVID-19, influenza, and RSV ‘tripledemic’ in Ontario, Canada: a population-based study

Mitchell E, Zhu H, Fitzpatrick T, Majoe A, Sule NO, Guglielmi R, Butt ZA. Epidemiol Infect. 2026 Sep 24; 154:e117.

Journal Article

16/09/2026

Thirty-day mortality after hospital transfer for pneumonia in nursing home residents with advanced dementia

Quinn KL, Talarico R, Ahmad A, Kobewka D. J Am Geriatr Soc. 2026; Sep 16 [Epub ahead of print].

Journal Article

20/08/2026

Exploring the relationship between respiratory syncytial virus and asthma using calendar time at birth as a source of quasi-random variation

Dimitris MC, Feikin DR, Sparrow E, Schultz SE, Kwong JC, Buchan SA, Savitz DA, Brunwasser SM, Fell DB. Paediatr Perinat Epidemiol. 2026; Aug 20 [Epub ahead of print].

Journal Article

03/08/2026

Multiple sclerosis onset preceding Epstein-Barr virus infection

Rotstein DL, Maxwell C, Tremlett H, Vyas MV, Everett K, Marrie RA. JAMA Neurol. 2026; Aug 3 [Epub ahead of print].

Journal Article

20/06/2026

Recent hydromorphone injection and risk of incident infective endocarditis among people who inject drugs in Toronto, Canada: a cohort study

Bakewell N, Bouck Z, Greenwald ZR, Upham K, Warren CM, Birck MG, Moura CS, Bernatsky S, Neville A, Gomes T, Werb D. Harm Reduct J. 2026; Jun 20 [Epub ahead of print].

Journal Article

15/06/2026

Factors associated with severe health outcomes among community-dwelling older adults hospitalized with respiratory syncytial virus

Atukorale VN, Kwong JC, Hernandez A, Moineddin R, Lee N, Kopp A, Andrew MK, Bronskill SE, Brown KA, Daneman N, Deeks SL, Johnstone J, McGeer AJ, McNally JD, Mubareka S, Murti M, Smieja M, Wilson SE, Zahariadis G, Bolotin S, Buchan SA. J Infect. 2026; 93(2): 106797. Epub 2026 Jun 15.

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

25/05/2026

Liver disease risk attributable to HCV, HIV, and HCV-HIV coinfection: an interaction analysis

McFarlane WJ, Flemming JA, Martinez-Cajas JL, Peng Y, Brogly SB. AIDS. 2026; 40(10): 1552-1560. Epub 2026 May 25.

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.

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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

Social disparities and the COVID-19, influenza, and RSV ‘tripledemic’ in Ontario, Canada: a population-based study

Thirty-day mortality after hospital transfer for pneumonia in nursing home residents with advanced dementia

Exploring the relationship between respiratory syncytial virus and asthma using calendar time at birth as a source of quasi-random variation

Multiple sclerosis onset preceding Epstein-Barr virus infection

Recent hydromorphone injection and risk of incident infective endocarditis among people who inject drugs in Toronto, Canada: a cohort study

Factors associated with severe health outcomes among community-dwelling older adults hospitalized with respiratory syncytial virus

Four methods for estimating hepatitis C incidence using extant testing data

Liver disease risk attributable to HCV, HIV, and HCV-HIV coinfection: an interaction analysis

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

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

Social disparities and the COVID-19, influenza, and RSV ‘tripledemic’ in Ontario, Canada: a population-based study

Thirty-day mortality after hospital transfer for pneumonia in nursing home residents with advanced dementia

Exploring the relationship between respiratory syncytial virus and asthma using calendar time at birth as a source of quasi-random variation

Multiple sclerosis onset preceding Epstein-Barr virus infection

Recent hydromorphone injection and risk of incident infective endocarditis among people who inject drugs in Toronto, Canada: a cohort study

Factors associated with severe health outcomes among community-dwelling older adults hospitalized with respiratory syncytial virus

Four methods for estimating hepatitis C incidence using extant testing data

Liver disease risk attributable to HCV, HIV, and HCV-HIV coinfection: an interaction analysis

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

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