scholarly journals Epidemiological characteristics of measles from 2000 to 2014: Results of a measles catch-up vaccination campaign in Xianyang, China

2017 ◽  
Vol 10 (5) ◽  
pp. 624-629 ◽  
Author(s):  
Rong-Qiang Zhang ◽  
Hong-Bing Li ◽  
Feng-Ying Li ◽  
Li-Xin Han ◽  
Yong-Min Xiong
Keyword(s):  
Vaccination Campaign ◽  
Catch Up ◽  
Epidemiological Characteristics

scholarly journals Recurrence of measles in central Italy: the experience of a hospital in Rome

2019 ◽  
Vol 34 (1) ◽  
Author(s):  
Andrea Petrucca ◽  
Antonella Alari ◽  
Styliani Papadopoulou ◽  
Crisitina Petrucci ◽  
Iolanda Santino
Keyword(s):  
Healthcare Workers ◽  
Adult Population ◽  
Vaccination Campaign ◽  
Central Italy ◽  
Immunization Coverage ◽  
Public Health Issue ◽  
High Morbidity ◽  
Major Public Health Issue ◽  
Measles Outbreak ◽  
Catch Up

Measles continue to be a major public health issue worldwide with high morbidity and mortality rates. The disease is still endemic in Europe and during 2017 a vast outbreak was described in Italy, Romania and Hungary, which led to thousands of new cases and several deaths. In Italy, 3931 confirmed cases of measles were reported to the Italian national surveillance system from many Italian administrative regions; Lazio, in central Italy, exhibited the highest number of infected patients 1322 (33.63%) and as well as the highest incidence. In this study, we describe the results of a retrospective analysis, carried out during 2016 and 2017, concerning the measles antibody prevalence in patients and healthcare workers attending the Sant’Andrea Hospital of Rome (Lazio). A total of 94 patients (median 30 years of age) were screened in 2016, and 316 (median 40 years of age) during 2017, with an increase of 236% compared to previous year. During 2017, 41 confirmed cases of measles were reported while none in 2016 (P<0.007), and we found a suboptimal immunization coverage in our cohort of patients. Furthermore, measles surveillance of Sant’Andrea healthcare workers during the study period involved 208 personnel units (median >47 years of age) and only one confirmed measles infection was recorded in 2017. These results suggest that there is still an unvaccinated portion of the adult population, who sustain the endemic circulation of measles in Italy. In addition to reach herd immunization on children of 2 years old, catch-up vaccination campaign targeting adult population in Italy and other European countries needs to be implemented to prevent future measles outbreak.

A measles and rubella (MR) catch-up vaccination campaign in an Egyptian University: Vaccine uptake and knowledge and attitudes of students

Vaccine ◽  
2010 ◽  
Vol 28 (47) ◽  
pp. 7563-7568 ◽  
Author(s):  
Khaled M. Abd Elaziz ◽  
Sahar M. Sabbour ◽  
Sahar A. Dewedar
Keyword(s):  
Vaccination Campaign ◽  
Vaccine Uptake ◽  
Knowledge And Attitudes ◽  
Catch Up

scholarly journals Dynamic prioritization of COVID-19 vaccines when social distancing is limited for essential workers

2021 ◽  
Vol 118 (16) ◽  
pp. e2025786118
Author(s):  
Jack H. Buckner ◽  
Gerardo Chowell ◽  
Michael R. Springborn
Keyword(s):  
Optimal Allocation ◽  
Rapid Development ◽  
Vaccination Campaign ◽  
The United States ◽  
Years Of Life Lost ◽  
Social Distancing ◽  
Health Goals ◽  
Temporal Flexibility ◽  
Nonpharmaceutical Interventions ◽  
Epidemiological Characteristics

COVID-19 vaccines have been authorized in multiple countries, and more are under rapid development. Careful design of a vaccine prioritization strategy across sociodemographic groups is a crucial public policy challenge given that 1) vaccine supply will be constrained for the first several months of the vaccination campaign, 2) there are stark differences in transmission and severity of impacts from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) across groups, and 3) SARS-CoV-2 differs markedly from previous pandemic viruses. We assess the optimal allocation of a limited vaccine supply in the United States across groups differentiated by age and essential worker status, which constrains opportunities for social distancing. We model transmission dynamics using a compartmental model parameterized to capture current understanding of the epidemiological characteristics of COVID-19, including key sources of group heterogeneity (susceptibility, severity, and contact rates). We investigate three alternative policy objectives (minimizing infections, years of life lost, or deaths) and model a dynamic strategy that evolves with the population epidemiological status. We find that this temporal flexibility contributes substantially to public health goals. Older essential workers are typically targeted first. However, depending on the objective, younger essential workers are prioritized to control spread or seniors to directly control mortality. When the objective is minimizing deaths, relative to an untargeted approach, prioritization averts deaths on a range between 20,000 (when nonpharmaceutical interventions are strong) and 300,000 (when these interventions are weak). We illustrate how optimal prioritization is sensitive to several factors, most notably, vaccine effectiveness and supply, rate of transmission, and the magnitude of initial infections.

scholarly journals Dynamic Prioritization of COVID-19 Vaccines When Social Distancing is Limited for Essential Workers

2020 ◽  
Author(s):  
Jack H. Buckner ◽  
Gerardo Chowell ◽  
Michael R. Springborn
Keyword(s):  
Optimal Allocation ◽  
Rapid Development ◽  
Vaccination Campaign ◽  
Years Of Life Lost ◽  
Social Distancing ◽  
Demographic Groups ◽  
Health Goals ◽  
Temporal Flexibility ◽  
Policy Objectives ◽  
Epidemiological Characteristics

AbstractCOVID-19 vaccines have been authorized in multiple countries and more are under rapid development. Careful design of a vaccine prioritization strategy across socio-demographic groups is a crucial public policy challenge given that (1) vaccine supply will be constrained for the first several months of the vaccination campaign, (2) there are stark differences in transmission and severity of impacts from SARS-CoV-2 across groups, and (3) SARS-CoV-2 differs markedly from previous pandemic viruses. We assess the optimal allocation of a limited vaccine supply in the U.S. across groups differentiated by age and also essential worker status, which constrains opportunities for social distancing. We model transmission dynamics using a compartmental model parameterized to capture current understanding of the epidemiological characteristics of COVID-19, including key sources of group heterogeneity (susceptibility, severity, and contact rates). We investigate three alternative policy objectives (minimizing infections, years of life lost, or deaths) and model a dynamic strategy that evolves with the population epidemiological status. We find that this temporal flexibility contributes substantially to public health goals. Older essential workers are typically targeted first. However, depending on the objective, younger essential workers are prioritized to control spread or seniors to directly control mortality. When the objective is minimizing deaths, relative to an untargeted approach, prioritization averts deaths on a range between 20,000 (when non-pharmaceutical interventions are strong) and 300,000 (when these interventions are weak). We illustrate how optimal prioritization is sensitive to several factors, most notably vaccine effectiveness and supply, rate of transmission, and the magnitude of initial infections.

scholarly journals Optimizing the use of the Men-ACWY conjugated vaccine to control the developing meningococcal W disease outbreak in the Netherlands, a rapid analysis

2018 ◽  
Author(s):  
Albert Jan van Hoek ◽  
Mirjam Knol ◽  
Hester de Melker ◽  
Jacco Wallinga
Keyword(s):  
Cost Effectiveness ◽  
The Netherlands ◽  
Vaccination Campaign ◽  
Cost Effective ◽  
Reproductive Number ◽  
Base Case ◽  
Case Scenario ◽  
Base Case Scenario ◽  
Catch Up ◽  
The Impact

AbstractBackgroundThere is a developing outbreak of Neisseria meningitidis serotype W (MenW) in the Netherlands. In response, those aged 14 months and 14 years are vaccinated with the conjugated MenACWY vaccine. In the spring of 2018 we aimed to explore the impact of adding a one-off catch-up campaign targeting those aged 15-18 years on the transmission of MenW and the cost-effectiveness of such a campaign.MethodsWe estimated the growth rate of the MenW outbreak and quantified the impact of various targeted vaccination strategies on the reproductive number, and subsequently projected the future incidence with and without vaccination. Future cases were expressed in costs and QALYS and the incremental cost-effectiveness ratio was obtained.ResultsWe estimate a reproductive number of around 1.4 (95%CI 1.2-1.7) over the period February 2016-February 2018. Adding the catch-up campaign reduces the reproductive number five years earlier than without a catch-up campaign, to a level around 1.2. The vaccination campaign, including the catch-up, will prevent around 100 cases per year in our base case scenario. Given the projected impact and realistic assumptions on costs and QALYs, adding the catch-up can be considered cost-effective using a threshold of €20,000 per QALY.ConclusionAdding the catch-up campaign targeting those aged 15-18 brings the impact of vaccination on reducing transmission five years forward and directly prevents a high-incidence age group from carriage and disease. Such a campaign can be considered cost-effective. Our study did underpin the decision to introduce a catch-up campaign in spring 2019. Furthermore, our applied method can be of interest for anyone solving vaccine allocation questions in a developing outbreak.

scholarly journals The burden of Japanese encephalitis, the catch-up vaccination campaign, and health service providers’ perceptions in Myanmar: 2012–2017

2020 ◽  
Vol 48 (1) ◽  
Author(s):  
Aung Ye Naung Win ◽  
Khin Thet Wai ◽  
Anthony D. Harries ◽  
Nang Thu Thu Kyaw ◽  
Tin Oo ◽  
...  
Keyword(s):  
Health Service ◽  
Japanese Encephalitis ◽  
Service Providers ◽  
Vaccination Campaign ◽  
Health Service Providers ◽  
Catch Up

scholarly journals Information needs during an emerging outbreak of meningococcal W135 disease in the Netherlands: a study among teenagers, their parents and healthcare professionals

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Marion de Vries ◽  
Feray R. Çoban ◽  
Liesbeth Claassen ◽  
Margreet J. M. te Wierik ◽  
Danielle R. M. Timmermans ◽  
...  
Keyword(s):  
Public Health ◽  
General Practitioner ◽  
The Netherlands ◽  
Information Needs ◽  
Healthcare Professionals ◽  
Vaccination Campaign ◽  
Online Surveys ◽  
Vaccine Protection ◽  
Catch Up ◽  
New Vaccines

Abstract Background To counter the rise in invasive meningococcal disease (IMD) serogroup W, the Netherlands introduced a menACWY catch-up vaccination campaign for teenagers in 2018 and 2019. Teenagers and parents who have questions or who seek advice from a professional about vaccinations are likely to consult a youth healthcare professional or their general practitioner. This study aimed to appraise the ability of these healthcare professionals to meet the information needs of teenagers and their parents at the start of the vaccination campaign. Methods With online surveys, we assessed information needs in teenagers (N = 1603) and parents (N = 1784) concerning IMD and the menACWY vaccination, and in healthcare professionals (N = 520) in their communication with teenagers and parents. We additionally studied healthcare professionals’ expectations of the information needs of teenagers and parents. Results We identified several information needs about IMD and the menACWY vaccination in teenagers, parents and healthcare professionals. Some important commonalities in the information needs in these three groups were found, with regard to the topics IMD prevention, vaccine effectiveness and vaccine protection duration. Healthcare professionals’ expectations of the information needs of teenagers and parents were quite accurate but some important discrepancies were found. Conclusion Our results suggest that healthcare professionals might not have been optimally equipped or prepared for questions from teenagers and their parents at the beginning of the vaccination campaign. We recommend public health institutes to timely assess and meet information needs about new vaccines in healthcare professionals to optimally equip them for consultations.

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