2022-07-05-世界卫生组织-Immunization_Seychelles_2022_country_profile_16页_351kb

The WHO and UNICEF report provides estimates of immunization coverage in Seychelles for various vaccines, from 2010 to 2021, based on national reports and surveys. Key points include:

• Most vaccines (e.g., BCG, DTP1, DTP3, Pol3, and MCV1) show consistently high coverage rates (typically 90-100%), with little variation over the years. For instance, BCGl and DTP coverage remain above 97% since 2010, supported by official administrative data.
• IPV estimates began in 2015, showing lower initial coverage (e.g., 35% in 2015 for the first dose) due to changes in schedules and potential COVID disruptions, but improved in subsequent years.
• RCV1 and HepBB estimates are derived from related measles coverage where national data are unavailable, with coverage stable around 98-99%. HepB3 and Hib3 coverage declined slightly from 2019-2021, but remained above 90% overall.
• Rotavirus (RotaC) and Pneumococcal (PcV3) coverage increased after introduction in 2017 and 2018, respectively. RotaC saw rapid uptake post-2017, reaching high levels by 2021.
• General methodology: Estimates use empirical data, administrative records, or surveys, with grades of confidence (GoC) indicating support levels. However, all data may have biases, so estimates should be used cautiously and assessed per objective.
• Data and further years available via WHO and UNICEF websites.