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Natasha S. Crowcroft

university of toronto

56H-index
362Paper Count
1.4WCitation Count
Published Papers 128
Publication Date
Gaps in immunization coverage at school entry and after two years of school attendance among immigrant and refugee children in Ontario, Canada
err2025-09-09
err0
errOAAI
errWilson, Sarah E.; Chambers, Catharine; Wilton, Andrew S.; Bai, Li; Crowcroft, Natasha; Deeks, Shelley L.; Halperin, Scott A.; Kwong, Jeffrey C.; Rashid, Meb; Tu, Karen; Wilson, Kumanan; Guttmann, Astrid
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Measles seroprevalence among individuals serologically tested in Ontario, Canada
errVaccine
IF3.5
err2025-07-11
err0
PREAI
errArchchun Ariyarajah; Natasha S. Crowcroft; Kevin A. Brown; John Wang; Jeffrey C. Kwong; Shelly Bolotin
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Group B Streptococcus disease during infancy and risk of subsequent neurodevelopmental impairments in young children: a population-based cohort study in Ontario, Canada
err2025-07-02
err0
PREAI
errRomina Fakhraei; Deshayne B. Fell; Darine El-Chaâr; Nisha Thampi; Beate Sander; Kevin Antoine Brown; Natasha Crowcroft; Shelly Bolotin; Jon Barrett; Elizabeth K. Darling; Nahuel Fittipaldi; Theresa Lamagni; Allison McGeer; Michelle Murti; Manish Sadarangani; Kevin L. Schwartz; Abdool Yasseen; Matthew Tunis; William Petrcich; Kumanan Wilson
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What is the current evidence base for measles vaccination earlier than 9 months of age?: Report from an informal technical consultation of the World Health Organization
errVACCINE
IF3.5
err2025-05-01
err0
PREAI
errVarma, Anshu; Bolotin, Shelly; De Serres, Gaston; Didierlaurent, Arnaud M.; Earle, Kristen; Frey, Kurt; Hahne, Susan; Kapelus, Daniel; Krause, L. Kendall; Mccarthy, Kevin; Moss, William J.; Orenstein, Walter A.; van Binnendijk, Rob; Vittrup, Dorthe Maria; Voysey, Merryn; Woudenberg, Tom; Bar-Zeev, Naor; Bose, Anindya S.; Hombach, Joachim; Mulders, Mick N.; Lochlainn, Laura Nic; Suwintono, Kezia; Feikin, Daniel R.; Crowcroft, Natasha S.
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Economic analysis of 15-valent and 20-valent pneumococcal conjugate vaccines among older adults in Ontario, Canada
err2025-04-07
err0
errOAAI
errGebremedhin B. Gebretekle; Ryan O’Reilly; Stephen Mac; Shaza Fadel; Natasha S. Crowcroft; Beate Sander
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Investigating the measles susceptibility gap in Ontario infants
errVACCINE
IF3.5
err2025-04-01
err0
PREAI
errBolotin, Shelly; Wright, James; Mclachlan, Elizabeth; Severini, Alberto; Hatchette, Todd; Crowcroft, Natasha; Deeks, Shelley; Arnold, Callum; Osman, Selma; Brown, Kevin; Halperin, Scott; Campigotto, Aaron; Richardson, Susan; Science, Michelle
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Progress of Measles and Rubella Surveillance in the Context of Measles Elimination in the WHO Eastern Mediterranean Region, 2019-2022
err2024-11-29
err1
errOAAI
errFarid, Muhammad; Fahmy, Kamal; Ghoniem, Amany; Sharifuzzaman, Md; Hasan, Quamrul; Crowcroft, Natasha; O'Connor, Patrick
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Burden of infant group B Streptococcus disease and impact maternal screening and antibiotic prophylaxis in Ontario, Canada: a population-based cohort study
err2024-11-01
err0
errOAAI
errFakhraei, Romina; Fell, Deshayne B.; El-Chaar, Darine; Thampi, Nisha; Sander, Beate; Brown, Kevin Antoine; Crowcroft, Natasha; Bolotin, Shelly; Barrett, Jon; Darling, Elizabeth K.; Fittipaldi, Nahuel; Lamagni, Theresa; Mcgeer, Allison; Murti, Michelle; Sadarangani, Manish; Schwartz, Kevin L.; Yasseen, Abdool; Tunis, Matthew; Petrcich, William; Wilson, Kumanan
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Global Status Report for the Verification of Measles and Rubella Elimination, 2022
err2024-08-22
err3
errOAAI
errO'Connor, Patrick; Masresha, Balcha; Pastor, Desiree; Musa, Nasrin; Hagan, Jose; Khanal, Sudhir; Lee, Chung-Won; Crowcroft, Natasha
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The Problem with Delaying Measles Elimination
err2024-07-22
err2
errOAAI
errCrowcroft, Natasha S.; Minta, Anna A.; Bolotin, Shelly; Cernuschi, Tania; Ariyarajah, Archchun; Antoni, Sebastien; Mulders, Mick N.; Bose, Anindya S.; O'Connor, Patrick M.
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Measuring waning protection from seasonal influenza vaccination during nine influenza seasons, Ontario, Canada, 2010/11 to 2018/19
err2024-02-22
err4
errOAAI
errChung, Hannah; Campitelli, Michael A.; Buchan, Sarah A.; Campigotto, Aaron; Crowcroft, Natasha S.; Gubbay, Jonathan B.; Jung, James K. H.; Karnauchow, Timothy; Katz, Kevin; McGeer, Allison J.; McNally, J. Dayre; Richardson, David C.; Richardson, Susan E.; Rosella, Laura C.; Russell, Margaret L.; Schwartz, Kevin L.; Simor, Andrew; Smieja, Marek; Sundaram, Maria E.; Warshawsky, Bryna F.; Zahariadis, George; Kwong, Jeffrey C.
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Effectiveness of Influenza Vaccination During Pregnancy Against Laboratory-Confirmed Seasonal Influenza Among Infants Under 6 Months of Age in Ontario, Canada
err2023-11-29
err2
errOAAI
errFell, Deshayne B.; Russell, Margaret; Fung, Stephen G.; Swayze, Sarah; Chung, Hannah; Buchan, Sarah A.; Roda, Weston; Smolarchuk, Christa; Wilson, Kumanan; Crowcroft, Natasha S.; Schwartz, Kevin L.; Gubbay, Jonathan B.; McGeer, Allison J.; Smieja, Marek; Richardson, David C.; Katz, Kevin; Zahariadis, George; Campigotto, Aaron; Mubareka, Samira; McNally, J. Dayre; Karnauchow, Timothy; Zelyas, Nathan; Svenson, Lawrence W.; Kwong, Jeffrey C.
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Population-Level Risk Factors Related to Measles Case Fatality: A Conceptual Framework Based on Expert Consultation and Literature Review
err2023-08-21
err1
errOAAI
errSbarra, Alyssa N.; Jit, Mark; Mosser, Jonathan F.; Ferrari, Matthew; Cutts, Felicity; Papania, Mark; Kretsinger, Katrina; Mccarthy, Kevin A.; Thakkar, Niket; Gaythorpe, Katy A. M.; Gamage, Deepa; Krause, L. Kendall; Dansereau, Emily; Crowcroft, Natasha; Portnoy, Allison
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Comparison of measles IgG enzyme immunoassays (EIA) versus plaque reduction neutralization test (PRNT) for measuring measles serostatus: a systematic review of head-to-head analyses of measles IgG EIA and PRNT
err2023-05-31
err13
errOAAI
errLutz, Chelsea S.; Hasan, Alvira Z.; Bolotin, Shelly; Crowcroft, Natasha S.; Cutts, Felicity T.; Joh, Eugene; Loisate, Stacie; Moss, William J.; Osman, Selma; Hayford, Kyla
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Evaluating the Impact of Statin Use on Influenza Vaccine Effectiveness and Influenza Infection in Older Adults
err2023-03-21
err2
errOAAI
errChung, Hannah; Campitelli, Michael A.; Buchan, Sarah A.; Campigotto, Aaron; Chen, Branson; Crowcroft, Natasha S.; Dubey, Vinita; Gubbay, Jonathan B.; Karnauchow, Timothy; Katz, Kevin; McGeer, Allison J.; McNally, J. Dayre; Mubareka, Samira; Murti, Michelle; Richardson, David C.; Rosella, Laura C.; Schwartz, Kevin L.; Smieja, Marek; Zahariadis, George; Kwong, Jeffrey C.
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Increasing pneumococcal vaccine uptake in older adults: a scoping review of interventions in high-income countries
err2023-01-02
err6
errOAAI
errKirubarajan, Abirami; Lynch, Meghan; Nasreen, Sharifa; Gebretekle, Gebremedhin B.; Fadel, Shaza A.; Crowcroft, Natasha S.; Allin, Sara
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Developing a reference standard for pertussis by applying a stratified sampling strategy to electronic medical record data
err2023-01-01
err2
errOAAI
errMcBurney, Shilo H.; Kwong, Jeffrey C.; Brown, Kevin A.; Rudzicz, Frank; Chen, Branson; Candido, Elisa; Crowcroft, Natasha S.
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Estimating population-based incidence of community-acquired pneumonia and acute otitis media in children and adults in Ontario and British Columbia using health administrative data, 2005-2018: a Canadian Immunisation Research Network (CIRN) study
err2022-06-28
err7
errOAAI
errNasreen, Sharifa; Wang, Jun; Sadarangani, Manish; Kwong, Jeffrey C.; Quach, Caroline; Crowcroft, Natasha S.; Wilson, Sarah E.; McGeer, Allison; Morris, Shaun K.; Kellner, James D.; Sander, Beate; Kus, Julianne, V; Hoang, Linda; Marra, Fawziah; Fadel, Shaza A.
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In Elimination Settings, Measles Antibodies Wane After Vaccination but Not After Infection: A Systematic Review and Meta-Analysis
err2022-04-13
err19
PREAI
errBolotin, Shelly; Osman, Selma; Hughes, Stephanie L.; Ariyarajah, Archchun; Tricco, Andrea C.; Khan, Sumaiya; Li, Lennon; Johnson, Caitlin; Friedman, Lindsay; Gul, Nazish; Jardine, Rachel; Faulkner, Maryrose; Hahne, Susan J. M.; Heffernan, Jane M.; Dabbagh, Alya; Rota, Paul A.; Severini, Alberto; Jit, Mark; Durrheim, David N.; Orenstein, Walter A.; Moss, William J.; Funk, Sebastian; Turner, Nikki; Schluter, William; Jawad, Jaleela S.; Crowcroft, Natasha S.
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Accelerating the Development of Measles and Rubella Microarray Patches to Eliminate Measles and Rubella: Recent Progress, Remaining Challenges
err2022-03-02
err22
errOAAI
errHasso-Agopsowicz, Mateusz; Crowcroft, Natasha; Biellik, Robin; Gregory, Christopher J.; Menozzi-Arnaud, Marion; Amorij, Jean-Pierre; Gilbert, Philippe-Alexandre; Earle, Kristen; Frivold, Collrane; Jarrahian, Courtney; Mvundura, Mercy; Mistilis, Jessica J.; Durrheim, David N.; Giersing, Birgitte
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