2022-07-05-世界卫生组织-Immunization_Tajikistan_2022_country_profile_18页_370kb

报告摘要

WHO and UNICEF Immunization Coverage Estimates for Tajikistan - 2021 Revision (July 2022)

Overview

This report provides estimates of immunization coverage for Tajikistan based on data received by July 7, 2022, with the next revision due July 2023. The estimates are country-specific, leveraging administrative data, surveys, and expert input, without data borrowing. All estimates are subject to uncertainty due to potential biases and varying data quality.

Key Findings by Vaccine

BCG: Coverage was high (98-99%) until 2020, averaging over 98%. A 2020-2021 polio outbreak correlated with declines, and 2021 estimate was challenged for overestimation (GoC = ••• or ••).
DTP1: Coverage ranged 95-98% annually. A polio outbreak in 2020-2021 led to overestimated figures in 2020 and low confidence in 2021 (GoC = •). Declines in numerators affected reported coverage.
DTP3: Similar trends as DTP1, with coverage around 97%. Confirmed in surveys; heterogeneity noted due to potential data issues (GoC = •• or •).
Pol3 (3rd polio dose): Coverage remained high at 94-98%, but a polio outbreak in 2020-2021 was linked to heterogeneity (GoC = •• or •).
IPV1 (inactivated polio vaccine): Introduced in 2018 with coverage of 51% in 2018 rising to near universal levels by 2021. Data quality concerns persisted (GoC = •• or •).
Other vaccines vary in coverage details, with some showing high consistency and others facing stock-outs or data challenges; specifics include details for HepB, MCV, RCV, HepV, Hib, RotaC, and PcV accessible via links.

Events and Confidence Challenges

Tajikistan experienced a significant polio-related cVDPV outbreak in 2020-2021, documented in multiple vaccines, leading to overestimated figures and noted heterogeneity in coverage.
Data compilation relies on various sources: administrative records, surveys, and denominator recalculations. Confidence grades (GoC) indicate empirical support levels but not data quality judgments.

Methods and Caveats

Estimates are computed without probability models, so uncertainty measures like confidence intervals are not provided.
GoC categories (e.g., ••• for well-supported estimates) reflect data sources' support; estimates should be assessed contextually and used cautiously due to potential inaccuracies.