Impact of Immunization Strategies on Rubella Incidence During Progress Toward Rubella Control and Elimination - China, 2004-2023.

Background: Since rubella was incorporated into the national disease surveillance system in 2004, rubella incidence has changed dramatically. This study analyzed the impact of immunization strategies on the age-specific and sex-specific incidence of rubella in China from 2004 to 2023 to inform efforts to accelerate rubella elimination.

Methods: Annual rubella-containing vaccine (RCV) coverage levels, reported rubella cases and incidence, and vaccination status of cases were obtained from the National Immunization Program Information Management System, the National Notifiable Diseases Reporting System, and the Measles Surveillance System, and used to describe temporal trends.

Surveillance for Adverse Events Following Immunization with Domestic Sabin-Strain Inactivated Poliovirus Vaccine - China, 2015-2022.

Introduction: Domestic Sabin-strain inactivated poliovirus vaccine (sIPV) was approved for use in China in 2015 and introduced into the national immunization schedule in a sequential schedule with oral poliovirus vaccine (OPV) in May 2016. However, a comprehensive analysis describing the characteristics, occurrences, and incidences of adverse events following immunization (AEFI) with sIPV in China is lacking.

Methods: Data on sIPV doses administered and AEFI reported from 2015 to 2022 were obtained from the Chinese National Immunization Information System (CNIIS).

Global landscape of COVID-19 vaccination programmes for older adults: a descriptive study.

Background: To minimise severe cases and deaths from COVID-19 among high-risk populations such as older adults (aged 60 years and older), it is crucial to monitor and update vaccination strategies. In this study, we aim to provide a global profile of the current COVID-19 vaccination programmes for older adults, including vaccination policies, coverage rates, and vaccine demand.

Methods: We used publicly available data on the COVID-19 vaccines used, vaccination schedules, indicated age groups, and age-specific country-level vaccine coverage, updated through to July 20, 2024.

New progress in HBV control and the cascade of health care for people living with HBV in China: evidence from the fourth national serological survey, 2020.

Background: Since 1992, when recombinant hepatitis B vaccine was introduced in China, government health officials have used nationally representative serological surveys to monitor progress in prevention and control of hepatitis B. In 2020, we conducted the fourth seroepidemiological survey, which for the first time included medical evaluation of the clinical status of HBsAg positive subjects over the age of 15 and their medical management. We report survey results in comparison with the three previous surveys.

The Epidemiological Characteristics and Spatiotemporal Clustering of Measles - China, 2005-2022.

Introduction: In recent years, the incidence of measles in China has consistently remained below 1 per 100,000 population, yet the disease has not been eliminated. This study aims to comprehensively analyze the epidemiological characteristics of measles from 2005 to 2022, identify high-risk populations and areas, and propose targeted interventions.

Methods: We utilized data from the China Disease Prevention and Control Information System for our comprehensive analysis.