Downloaded Or Used a Contact Tracing/Exposure Notification App (77%) and Who Would Not Receive a COVID-19 Vaccine When Available (20%) Or Were Unsure (12%)
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COVID-19 Evidence Support Team EVIDENCE SEARCH REPORT Review Question: How effective are COVID-19 vaccines? Context: Benefits following dose/second dose; how well it prevents infections; evidence of limiting viral replication or spread; preventing hospitalization; preventing ventilation; preventing “long COVID” (long term symptoms), duration of immunity (natural and vaccinated). FDA cold chain changes. Effectiveness against P1 variant. Booster doses for variants. Does not include vaccine willingness/acceptance (to be run as a separate search) Review Code: INF031801v3 ESR Complete Date: April 30, 2021 Cite As: Miller, L., Howell-Spooner, B.. How effective are COVID-19 vaccines? 2021 Apr 30, Document no.: INF031801v3 ESR. In: COVID-19 Rapid Evidence Reviews [Internet]. SK: SK COVID Evidence Support Team, c2021. 107 p. (CEST evidence search report). Librarian Notes & Comments Hello All, We’ve run this update for the databases from March 18th to April 30th, and searched for grey literature between those dates as well. Thanks, Brianna and Lukas Search Results: Guidelines, Summaries & Other Grey Literature Government Health Canada Extended dose intervals for COVID-19 vaccines to optimize early vaccine rollout and population protection in Canada in the context of limited vaccine supply. April 14, 2021. https://www.canada.ca/en/public-health/services/immunization/national-advisory-committee- on-immunization-naci/extended-dose-intervals-covid-19-vaccines-early-rollout-population- protection.html Public Health Agency of Canada Disclaimer This information is provided as a service by the Saskatchewan Health Authority and University of Saskatchewan Libraries. Professional librarians conduct searches of the literature. Results are subject to the limitations of the databases and the specificity, broadness and appropriateness of the search parameters presented by the requester. The Libraries do not represent in any matter that retrieved citations are complete, accurate or otherwise to be relied upon. The search results are only valid as of the date and time at which the search is conducted. The Libraries do not accept responsibility for any loss or damage aris ing from the use of, or reliance on, search results. Statement from the Council of Chief Medical Officers of Health (CCMOH) on the use of AstraZeneca COVID-19 Vaccine. April 23, 2021. https://www.canada.ca/en/public- health/news/2021/04/ccmoh-statement-on-use-of-astrazeneca-covid-19-vaccine.html ECDC Infographic: COVID-19 vaccination in the EU/EEA. April 29, 2021. https://www.ecdc.europa.eu/en/publications-data/infographic-covid-19-vaccination-eueea Objectives of vaccination strategies against COVID-19. April 23, 2021. https://www.ecdc.europa.eu/en/publications-data/objectives-vaccination-strategies-against- covid-19 Interim guidance on the benefits of full vaccination against COVID-19 for transmission and implications for non-pharmaceutical interventions. April 21, 2021. https://www.ecdc.europa.eu/en/publications-data/interim-guidance-benefits-full-vaccination- against-covid-19-transmission ECDC guidance for adjusting non-pharmaceutical interventions based on vaccination status. April 21, 2021. https://www.ecdc.europa.eu/en/news-events/ecdc-guidance-adjusting-non- pharmaceutical-interventions-based-vaccination-status Agency for Clinical Innovation (ACI) and the New South Wales Government COVID-19 vaccines and clotting disorders. April 30, 2021. https://aci.health.nsw.gov.au/__data/assets/pdf_file/0005/646547/Evidence-check-COVID-19- vaccines-clotting-disorders.pdf Cerebral venous sinus thrombosis after AstraZeneca vaccination. April 30, 2021. https://aci.health.nsw.gov.au/__data/assets/pdf_file/0006/646548/Eveidemce-check-Heparin- CVST-COVID-19-vaccines.pdf Immunocompromised patients and COVID-19 vaccines. April 28, 2021. https://aci.health.nsw.gov.au/__data/assets/pdf_file/0009/645750/Evidence-check- Immunocompromised-patients-COVID-19-vaccines.pdf Public Health England Public Health England vaccine effectiveness report. March 2021. https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_dat a/file/971017/SP_PH__VE_report_20210317_CC_JLB.pdf Impact of COVID-19 vaccines on mortality in England December 2020 to March 2021. March, 2021. https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_dat a/file/977249/PHE_COVID-19_vaccine_impact_on_mortality_March.pdf CDC Postvaccination SARS-CoV-2 Infections Among Skilled Nursing Facility Residents and Staff Members — Chicago, Illinois, December 2020–March 2021. April 30, 2021. https://www.cdc.gov/mmwr/volumes/70/wr/mm7017e1.htm?s_cid=mm7017e1_w COVID-19 Outbreak Associated with a SARS-CoV-2 R.1 Lineage Variant in a Skilled Nursing Facility After Vaccination Program — Kentucky, March 2021. April 30, 2021. https://www.cdc.gov/mmwr/volumes/70/wr/mm7017e2.htm?s_cid=mm7017e2_w Updated Recommendations from the Advisory Committee on Immunization Practices for Use of the Janssen (Johnson & Johnson) COVID-19 Vaccine After Reports of Thrombosis with Evidence Search Report: INF031801v3 ESR 2 Thrombocytopenia Syndrome Among Vaccine Recipients – United States, April 2021. April 30. 2021. https://www.cdc.gov/mmwr/volumes/70/wr/mm7017e4.htm?s_cid=mm7017e4_x Effectiveness of Pfizer-BioNTech and Moderna Vaccines Against COVID-19 Among Hospitalized Adults Aged 65 Years – United States, January – March 2021. April 28, 2021. https://www.cdc.gov/mmwr/volumes/70/wr/mm7018e1.htm?s_cid=mm7018e1_x What You Should Know About the Possibility of COVID-19 Illness After Vaccination. April 21, 2021. https://www.cdc.gov/coronavirus/2019-ncov/vaccines/effectiveness/why-measure- effectiveness/breakthrough-cases.html NHS Library and Knowledge Services Type of COVID -19 antibodies after vaccination compared with after COVID-19 infection. January 14, 2021. https://kfh.libraryservices.nhs.uk/covid-19-coronavirus/for-lks-staff/literature- searches/ Research Centres Science Table COVID-19 Advisory for Ontario A Vaccination Strategy for Ontario COVID-19 Hotspots and Essential Workers. April 23, 2021. https://covid19-sciencetable.ca/sciencebrief/a-vaccination-strategy-for-ontario-covid-19- hotspots-and-essential-workers/ National Collaborating Centre for Methods and Tools Rapid Review: Post Vaccination Transmission. March 26, 2021. https://www.nccmt.ca/covid- 19/covid-19-evidence-reviews/412 Prevent Pandemics Weekly Science Review March 18 – April 16, 2021. April 15, 2021. https://preventepidemics.org/covid19/science/weekly-science-review/march-18-april-16- 2021/#FAQ:__Should_pregnant_people_get_a_COVID-19_vaccine Centre for Economic Policy Research DP16070 The Great COVID-19 Vaccine Rollout: Behavioral and Policy Responses. April, 2021. https://cepr.org/active/publications/discussion_papers/dp.php?dpno=16070 Search Results: News, Blogs, & Social Media Press Releases Public Health England One dose of COVID-19 vaccine can cut household transmission by up to half. April 28, 2021. https://www.gov.uk/government/news/one-dose-of-covid-19-vaccine-can-cut-household- transmission-by-up-to-half Evidence Search Report: INF031801v3 ESR 3 News CBC Does the AstraZeneca vaccine cause more common side-effects than others? Your coronavirus questions answered. April 28, 2021. https://www.cbc.ca/news/health/ask-covid-astrazeneca- genx-side-effect-1.6003923 What Johnson & Johnson’s 1-shot vaccine could mean for Ontario’s most vulnerable. April 28, 2021. https://www.cbc.ca/news/canada/toronto/johnson-johnson-vaccine-ontario-vulnerable- 1.6004021 Do vaccines prevent transmission? Should physical distancing be increased? Your COVID-19 questions answered. April 25, 2021. https://www.cbc.ca/radio/checkup/is-it-time-to-make- police-body-cameras-mandatory-1.6001107/do-vaccines-prevent-transmission-should-physical- distancing-be-increased-your-covid-19-questions-answered-1.6001919 Canadians over 30 should be offered AstraZeneca-Oxford vaccine, advisory body recommends. April 23, 2021. https://www.cbc.ca/news/health/astrazeneca-covid-19-vaccine-over-30-naci- 1.6000052 Health Canada to start real-time review of Medicago COVID-19 vaccine. April 23, 2021. https://www.cbc.ca/news/health/health-canada-to-start-real-time-review-of-medicago-covid- 19-vaccine-1.5999559 Quebec is planning to use a different vaccine for the 2nd dose in some cases. Here’s what the experts say. April 23, 2021. https://www.cbc.ca/news/canada/montreal/quebec-second-dose- moderna-pfizer-1.5998847 U.S. to resume use of Johnson & Johnson COVID-19 vaccine. April 23, 2021. https://www.cbc.ca/news/health/us-panel-restart-johnson-and-johnson-vaccinations- 1.6000464 Unvaccinated care-home workers a bigger threat than family visits, Sask. health official says. April 23, 2021. https://www.cbc.ca/news/canada/saskatoon/unvaccinated-care-home-workers- a-bigger-threat-than-family-visits-sask-health-official-says-1.6000091 Here’s what’s known about why women seem more susceptible to rare vaccine blood clots. April 20, 2021. https://www.cbc.ca/news/health/vaccines-covid-blood-clots-research-1.5989719 How a COVID-19 vaccine can (and cannot) affect menstruation, mammograms and more. April 19, 2021. https://www.cbc.ca/news/canada/british-columbia/women-covid-vaccines-1.5991026 Sask. ‘actively reviewing’ dropping age eligibility for AstraZeneca vaccine to 40: Moe. April 19, 2021. https://www.cbc.ca/news/canada/saskatoon/saskatchewan-covid-19-vaccine-scott-moe- 1.5993363 Ontario, Alberta to lower minimum age for AstraZeneca-Oxford COVID-19 vaccine to 40 from 55.