Characteristics and factors of repeated influenza vaccination among elderly individuals in Shanghai, China from 2020 to 2022.

Elderly individuals face a high risk of hospitalization and death related to influenza, thus prioritizing them for influenza vaccination. Due to variations in the influenza virus and waning protective antibodies, annual influenza vaccination is recommended. However, research on repeated influenza vaccination among elderly individuals in China is limited.

Effectiveness of varicella vaccine as post-exposure prophylaxis: a meta-analysis.

Background: To evaluate the effectiveness of varicella vaccine (VarV) as post-exposure prophylaxis (PEP) among children during varicella outbreaks.

Material And Methods: A comprehensive literature search was performed in PubMed, Embase, Web of Science, SinoMed, Wanfang and CNKI. Relevant outcomes included the incidence of varicella.

Low vaccination coverage of pneumococcal conjugate vaccines (PCVs) in Shanghai, China: A database analysis based on birth cohorts from 2012 to 2020.

Background: Pneumococcal vaccines have been developed to protect infants and young children from pneumococcal diseases. Vaccination coverage studies are important in determining a population's vaccination status and strategically adjusting national immunization programs (NIP). In this paper, we aim to describe the coverage of pneumococcal conjugate vaccines (PCVs) immunization for birth cohorts from 2012 to 2020 and discussed the factors influencing the coverage.

Changes in epidemiological features of vaccine preventable infectious diseases among three eras of national vaccination strategies from 1953 to 2018 in Shanghai, China.

Background: Recurring outbreaks of infectious diseases highlight the importance of population vaccination strategies. We aimed to assess the impact of national vaccination strategies on vaccine-preventable infectious diseases (VPDs) in Shanghai, China and to identify vulnerable groups that may benefit from future vaccination policies.

Methods: Infectious disease data from 1953 to 2018 was obtained from Xuhui District Center for Disease Control and Prevention, Shanghai China.

Willingness to receive future COVID-19 vaccines following the COVID-19 epidemic in Shanghai, China.

Background: There are no pharmacological interventions currently available to prevent the transmission of SARS-CoV-2 or to treat COVID-19. The development of vaccines against COVID-19 is essential to contain the pandemic. we conducted a cross-sectional survey of Shanghai residents to understand residents' willingness to be vaccinated with any future COVID-19 vaccines and take measures to further improve vaccination coverage.

Impact of the coronavirus disease 2019 epidemic and a free influenza vaccine strategy on the willingness of residents to receive influenza vaccines in Shanghai, China.

The influenza vaccine is not included in China's national immunization program. Here, we assessed influenza vaccine coverage among Shanghai residents and estimated the impacts of the coronavirus disease 2019 (COVID-19) epidemic and a hypothetical free vaccine strategy on the willingness of participants to receive influenza vaccines. The coverage of influenza vaccines among Shanghai residents from 2015 to 2019 was 1.

Two cases of disseminated BCG disease following vaccination in the same family: case reports and review of the literature in China.

Disseminated bacillus Calmette-Guérin (BCG) disease is a rare and serious adverse event following immunization (AEFI) with BCG. Here, we reported two cases of disseminated BCG disease in the same family and reviewed the literature to identify another 35 cases in China. The average age at onset was 3.

Characteristics of within-household varicella transmission events associated with school outbreaks in Shanghai, China, 2009-2018.

Transmission of varicella occurs frequently in schools and households. We investigated the characteristics of varicella cases derived from within-household transmission and the modes of varicella transmission between school and household settings in Shanghai, China, from 2009 to 2018. Within-household transmission occurred in 278 households, of which 134 transmission events were between children.

Factors Influencing the Size and Duration of School Varicella Outbreaks in Shanghai, China, in the Era of Voluntary Single-Dose Vaccination.

Varicella outbreaks continue to occur in schools. We assessed potential factors associated with the size and duration of 560 school-based outbreaks in Shanghai, China. Outbreaks occurring in primary and middle schools involved more cases and had longer durations, and conducting postexposure prophylaxis campaigns was an effective strategy for outbreak control.

Varicella outbreak trends in school settings during the voluntary single-dose vaccine era from 2006 to 2017 in Shanghai, China.

Objective: To investigate varicella outbreak trends among schoolchildren during the voluntary single-dose varicella vaccine (VarV) era in Shanghai, China.

Methods: Trends in school varicella outbreaks from 2006 to 2017 were assessed using joinpoint regression models. The impacts of changes in single-dose VarV coverage among schoolchildren and implementation of post-exposure prophylaxis (PEP) strategies on outbreak trends were further analyzed.

Norovirus shedding among symptomatic and asymptomatic employees in outbreak settings in Shanghai, China.

Background: Norovirus (NoV) is recognized as a leading cause of acute gastroenteritis (AGE) outbreaks in settings globally. Studies have shown that employees played an important role in the transmission mode during some NoV outbreaks. This study aimed to investigate the prevalence of NoV infection and duration of NoV shedding among employees during NoV outbreaks, as well as factors affecting shedding duration.

Effectiveness of varicella vaccine as post-exposure prophylaxis during a varicella outbreak in Shanghai, China.

Objectives: Varicella vaccine (VarV) is recommended as effective post-exposure prophylaxis (PEP) within 3-5days to control outbreaks. However, the effectiveness of PEP at >5days after exposure and the administration of a second dose to those with a history of one dose prior to exposure have not been fully examined. This study evaluated the vaccine effectiveness (VE) of PEP in preventing disease during a varicella outbreak in Shanghai, China in 2013.

HENOCH-SCHÖNLEIN PURPURA NEPHRITIS FOLLOWING INFLUENZA VACCINATION: A CASE REPORT AND REVIEW OF THE LITERATURE.

We reported a 16-year-old boy who developed Henoch-Schönlein purpura (HSP) 15 days after receiving a seasonal influenza vaccine. His symptoms improved temporally with treatment but he developed HSP nephritis (HSPN) that relapsed multiple times over the following three years. This case of Henoch-Schönlein purpura may have been due to the seasonal influenza vaccine.