General vaccine surveillance

Extensive Study in Canada to Assess COVID-19 Vaccine Immune Responses and Effectiveness among People Living With HIV

People living with HIV are less likely to mount an adequate immune response, which may put them at higher risk for both serious COVID-19 illness and reduced response to COVID-19 vaccination. The Government of Canada, through its COVID-19 Immunity Task Force (CITF) and Vaccine Surveillance Reference Group (VSRG), is investing approximately $1.75 million in a study that will assess the immune responses, safety, and effectiveness of COVID-19 vaccination for this vulnerable population that has been understudied with respect to COVID-19.

mRNA COVID-19 vaccines are shown to be highly effective after two doses against symptomatic SARS-CoV-2 infection and severe COVID-19 outcomes

Researchers from the Canadian Immunization Research Network (CIRN) assessed the effectiveness of mRNA vaccines against symptomatic COVID-19 infection and severe outcomes and showed promising results. In their pre-print, therefore not yet peer reviewed, researchers suggest that while one dose of the mRNA vaccine provides some protection that improves over time, two doses appear to [...]

2021-06-08T13:35:59-04:00June 8, 2021|General vaccine surveillance|

New Canada-Wide Research to Study Mixing-and-Matching COVID-19 vaccines

The Government of Canada, through the COVID-19 Immunity Task Force (CITF) and the Vaccine Surveillance Reference Group (VSRG), is supporting a new nation-wide study that will look at the effects of ‘mixing-and-matching’ approved COVID-19 vaccines in adults. Approximately $4.8 million is being provided for this study, which will assess the safety and effectiveness of using two different COVID-19 vaccines for the first and second dose. The project will also study the effects of increasing the interval between doses.

Studies being launched to support vaccine effectiveness and safety monitoring across Canada

A consortium of Canadian organizations, including the Public Health Agency of Canada (PHAC), the Canadian Research Immunization Network (CIRN), the National Advisory Committee on Immunization (NACI) and the CITF, are collaborating through the Vaccine Surveillance Reference group (VSRG) to identify new studies to support comprehensive vaccine effectiveness and safety monitoring efforts across Canada.

Most Montreal parents willing to vaccinate their children, but vaccine hesitancy more prominent among visible minorities

Health Canada approved the use of Pfizer-BioNTech’s COVID-19 vaccine on children 12 and older on May 5, 2021. As part of her CITF-funded research, Dr. Kate Zinszer, from Université de Montréal, and her colleagues examined willingness to vaccinate children according to level of education, neighbourhood, and visible minority status within a cohort of parents [...]

2021-05-11T11:01:36-04:00May 11, 2021|General vaccine surveillance|
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