Jeevakanthan Ahash, Roubos Sophia, Hong Cindy, Hender Allison, Granger Morag, Khan Sazzadul, Shahid Maaz, LeBlanc Shannon, O'Connell Jeanine, Gilbert Nicolas L
Public Health Agency of Canada, Ottawa, ON, Canada.
Alberta Health, Edmonton, AB, Canada.
Can J Public Health. 2025 Apr;116(2):284-289. doi: 10.17269/s41997-024-00956-9. Epub 2024 Oct 26.
A decline in routine vaccination coverage in children has been observed after the onset of the COVID-19 pandemic, but it is unclear whether these declines were sustained over time. This analysis assessed changes in vaccination coverage at ages 2 and 7 years for routinely administered vaccinations before, during, and after the COVID-19 pandemic.
Vaccination coverage was measured using yearly data from the Standardized Reporting on Vaccination (STARVAX) surveillance system between December 31, 2019, and December 31, 2023. Four provinces (Alberta, Saskatchewan, Manitoba, and New Brunswick) and one territory (Yukon) produced reports from their immunization registries and provided the Public Health Agency of Canada with the numbers of vaccinated 2-year-old and 7-year-old children. Population estimates from Statistics Canada and the Yukon Bureau of Statistics were used as the denominators.
There was a decline in vaccination coverage in 2023 compared to 2019. In 2-year-olds, coverage for one dose of the measles, mumps, and rubella (MMR) vaccine and four doses of the diphtheria, tetanus, and acellular pertussis (DTaP) vaccine decreased from 88.9% to 84.3% and from 79.6% to 73.3%, respectively. Among 7-year-olds, DTaP (up-to-date) and MMR (two doses) vaccination coverage decreased from 77.3% to 68.2% and 85.4% to 74.9%, respectively.
These declines are of concern and suggest that health care professionals should provide parents with accurate information regarding vaccines and encourage them to have their children vaccinated and keep vaccinations up to date.
在新冠疫情爆发后，已观察到儿童常规疫苗接种覆盖率有所下降，但尚不清楚这些下降是否随时间持续存在。本分析评估了新冠疫情之前、期间和之后2岁和7岁儿童常规接种疫苗的接种覆盖率变化。
使用标准化疫苗接种报告（STARVAX）监测系统2019年12月31日至2023年12月31日的年度数据来衡量疫苗接种覆盖率。四个省份（艾伯塔省、萨斯喀彻温省、曼尼托巴省和新不伦瑞克省）和一个地区（育空地区）提供了其免疫登记报告，并向加拿大公共卫生局提供了2岁和7岁接种疫苗儿童的数量。加拿大统计局和育空地区统计局的人口估计数用作分母。
与2019年相比，2023年疫苗接种覆盖率有所下降。在2岁儿童中，一剂麻疹、腮腺炎和风疹（MMR）疫苗以及四剂白喉、破伤风和无细胞百日咳（DTaP）疫苗的接种覆盖率分别从88.9%降至84.3%，从79.6%降至73.3%。在7岁儿童中，DTaP（全程接种）和MMR（两剂）疫苗接种覆盖率分别从77.3%降至68.2%，从85.4%降至74.9%。
这些下降令人担忧，表明医疗保健专业人员应向家长提供有关疫苗的准确信息，并鼓励他们为孩子接种疫苗并保持疫苗接种最新状态。
