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Summary of COVID-19 vaccine AEFI reports received in Saskatchewan

As of January 28, 2023, a cumulative total of 1,351 reportable AEFI reports have been received, following 2,811,507 doses of COVID-19 vaccines administered in SK with a reporting rate of 0.48 per 1,000 doses administered (0.048% of all doses administered). Refer to Tables 1 and 2 for more details.

Table 1: Summary of COVID-19 Vaccine AEFI Reports Received in Saskatchewan, as of January 28, 2023

  Pfizer
BA.1
Bivalent
Pfizer 12+
BA.4/5
Bivalent
Pfizer
5-11
BA.4/5
Bivalent
Pfizer
12+
Pfizer
5-11
Pfizer
6 mo-4yr
Moderna
18+ BA.1
Bivalent
Moderna
BA.4/5
Bivalent
Moderna
6+
Moderna
6 mo-5yr
Astra
Zeneca 18+
COVI-
SHIELD
18+
Janssen
18+
Novavax 12+ Totals
Total number of doses administered 7 110,840 741 1,841,501 123,351 3,036 96,789 3 528,713 11,942 75,048 17,064 1,977 495 2,811,507
Total number of AEFI reports received 0 8 0 852 13 1 5 0 324 5 113 25 4 1 1,351
Number of non-serious reports 0 8 0 788 12 1 4 0 311 5 95 24 3 1 1,252
Number of serious reports1 0 0 0 64 1 0 1 0 13 0 18 1 1 0 99
Proportion of serious AEFI reports 0% 0% 0% 7.5% 8% 0% 20% 0% 4% 0% 16% 4% 25% 0% 7%
Total AEFI reporting rate per 1,000 doses administered 0 0.07 0 0.46 0.1 0.33 0.05 0 0.61 0.42 1.51 1.47 2.02 2.02 0.48
Serious AEFI reporting rate per 1,000 doses administered 0 0 0 0.03 0.01 0 0.01 0 0.02 0 0.24 0.06 0.51 0 0.04

1Serious criteria includes an adverse event that is life threatening or results in death, requires hospitalization or prolongation of an existing hospitalization, results in residual disability or causes congenital malformation.

Table 2: Cumulative Frequency of AEFIs Reported

Adverse event type # of events
Edema (allergic, not injection site) 305
Rashes (all) 256
Anesthesia/paresthesia 222
Injection site reactions 199
Gastrointestinal 149
Anaphylaxis 82
Chest tightness 69
Headache 67
Arthralgia/arthritis/joint pain 47
Malaise/lethargy 45
Fever 36
Not inclusive of all AEFIs that can be reported

There are safety signals identified by the Public Health Agency of Canada (PHAC) for vaccine-induced immune thrombotic thrombocytopenia (VITT)/thrombosis with thrombocytopenia syndrome (TTS), myocarditis/pericarditis, Guillain-Barre Syndrome (GBS) and capillary leak syndrome (CLS) requiring provinces and territories to report these events as adverse events of special interest to the PHAC. As of January 28, 2023, 3 VITT/TTS, 33 myocarditis/pericarditis, 2 GBS and 0 CLS cases have been reported in Saskatchewan.

Information on reported adverse events following COVID-19 vaccination in Canada can be found at the PHAC AEFI reporting site at COVID-19 vaccine safety: Weekly report on side effects following immunization on Canada.ca.

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