Search results for "Vacuna"
showing 10 items of 51 documents
The Rotavirus Vaccine Landscape, an Update
2021
Rotavirus is the leading cause of severe acute childhood gastroenteritis, responsible for more than 128,500 deaths per year, mainly in low-income countries. Although the mortality rate has dropped significantly since the introduction of the first vaccines around 2006, an estimated 83,158 deaths are still preventable. The two main vaccines currently deployed, Rotarix and RotaTeq, both live oral vaccines, have been shown to be less effective in developing countries. In addition, they have been associated with a slight risk of intussusception, and the need for cold chain maintenance limits the accessibility of these vaccines to certain areas, leaving 65% of children worldwide unvaccinated and …
One-year breakthrough SARS-CoV-2 infection and correlates of protection in fully vaccinated hematological patients
2023
AbstractThe long-term clinical efficacy of SARS-CoV-2 vaccines according to antibody response in immunosuppressed patients such as hematological patients has been little explored. A prospective multicenter registry-based cohort study conducted from December 2020 to July 2022 by the Spanish Transplant and Cell Therapy group, was used to analyze the relationship of antibody response over time after full vaccination (at 3–6 weeks, 3, 6 and 12 months) (2 doses) and of booster doses with breakthrough SARS-CoV-2 infection in 1551 patients with hematological disorders. At a median follow-up of 388 days after complete immunization, 266 out of 1551 (17%) developed breakthrough SARS-CoV-2 infection a…
Monitoring serologic response to single in ovo vaccination with an immune complex vaccine against infectious bursal disease in broilers
2021
Este artículo se encuentra disponible en la siguiente URL: https://www.sciencedirect.com/science/article/pii/S003257912100033X The infectious bursal disease (IBD) virus is one of the most resistant and prevalent virus worldwide in the poultry industry, being vaccination the main tool to control the disease. For this reason, consistent and uniform immunization of broiler flocks against IBD is necessary to avoid the disease spreading. The aim of this study was to apply and assess an epidemiologic mapping tool focused on the immunization by in ovo single broiler vaccination using an immune complex IBD vaccine. With this regard, 7,576 serum samples were collected from 603 broiler flocks raised …
La Asociación Europea contra la Poliomielitis y los programas europeos de vacunación
2012
La búsqueda de una respuesta europea al problema planteado por los brotes epidémicos de poliomielitis en las décadas centrales del siglo XX, desembocó en la creación de un organismo nuevo, la Asociación Europea contra la Poliomielitis en 1951. Los mecanismos de funcionamiento interno y las conexiones internacionales de dicha Asociación fueron subsidiarios de un determinado contexto socio-político que propiciaba este tipo de consorcios. Como muestra este trabajo, su labor en los dieciocho años de existencia fue decisiva para la articulación y el éxito alcanzado por las políticas sanitarias nacionales de inmunización masiva frente a la enfermedad.
Factors associated with influenza vaccination of hospitalized elderly patients in Spain
2016
Vaccination of the elderly is an important factor in limiting the impact of influenza in the com- munity. The aim of this study was to investigate the factors associated with influenza vacci- nation coverage in hospitalized patients aged 65 years hospitalized due to causes unrelated to influenza in Spain. We carried out a cross-sectional study. Bivariate analysis was performed comparing vaccinated and unvaccinated patients, taking in to account sociodemographic variables and medical risk conditions. Multivariate analysis was per- formed using multilevel regression models. We included 1038 patients: 602 (58%) had received the influenza vaccine in the 2013 - 14 season. Three or more general p…
The effectiveness of influenza vaccination in the elderly in Spain in two influenza seasons: a multicenter case-control study
2017
Influenza vaccination may limit the impact of influenza in the community. The aim of this study was to assess the effectiveness of influenza vaccination in preventing hospitalisation in individuals aged ≥ 65 years in Spain. A multicentre case-control study was conducted in 20 Spanish hospitals during 2013/14 and 2014/15. Patients aged ≥ 65 years who were hospitalised with laboratory-confirmed influenza were matched with controls according to sex, age and date of hospitalisation. Adjusted vaccine effectiveness (VE) was calculated by multivariate conditional logistic regression. A total of 728 cases and 1,826 matched controls were included in the study. Overall VE was 36% (95% confidence inte…
Adenoviral vector-based COVID-19 vaccines-associated cerebral venous sinus thromboses: Are those adverse events related to the formation of neutrophi…
2022
In March and April 2021 several countries temporarily suspended vaccinations with adenoviral vector-based COVID-19 vaccines. Concerns of national regulators particularly regarded very rare cases of cerebral venous sinus thrombosis after immunization with this type of vaccine. Until now, these adverse events were interpreted as standard hypercoagulable events, but their clinical characteristics suggest that they may actually represent unique thrombotic disorders referred to as immunothrombosis. In this paper it is speculated that it is possible that immunothrombosis after this type of vaccine results from formation of neutrophil extracellular traps (NETs) in veins affected by stagnant blood …
Novedades doctrinales y actividades relativas a las vacunas en la Real Academia de Medicina de Valencia (1831-1920)
2019
La Real Academia de Medicina de Valencia, a lo largo de los 90 años estudiados, mantuvo una relación constante con las vacunas que en ese periodo empezaban a utilizarse como profilaxis de las enfermedades infecciosas. Lo hizo mediante informes que se le requerían sobre la oportunidad de su aplicación o sobre la pertinencia de abrir instituciones que las produjeran y distribuyeran, a la vez que muchos de sus miembros intervinieron en su investigación y aplicación o debatieron sobre sus fundamentos científicos. Investigación, debate científico y colaboración con la sociedad, como señas de identidad de nuestra Academia.// La Real Academia de Medicina de Valencia, al llarg dels 90 anys estudiat…
La microbiología en el siglo XIX español: organización de su actividad científica
1984
S'estudia la legislació i les institucions bacteriològiques del segle XIX. La Microbiologia va estar unida a la Higiene en els plans d'estudi fins ben entrat el segle XIX. De manera independent, en algunes càtedres d'Anatomia Patològica es va començar a explicar les bases de la nova ciència. La investigació bacteriològica es va realitzar, en la Universitat en les càtedres d'Histologia i Anatomia Patològica, i fora d'ella, en laboratoris privats, instituts de vacunació i escoles lliures de medicina. //. Se estudia la legislación y las instituciones bacteriológicas del siglo XIX. La Microbiología estuvo unida a la Higiene en los planes de estudio hasta bien entrado el siglo XIX. De forma inde…
Estudios epidemiológicos y virológicos sobre la poliomielitis en Valencia (1959-1969) = Epidemiological and virological studies into the poliomyeliti…
2009
Los estudios sobre el virus de la polio comenzaron en Valencia en 1959 de la mano del microbiólogo Vicente Sanchis-Bayarri Vaillant. Tras su formación en virología en la Universidad de Rochester y en el Instituto Pasteur, puso en marcha un laboratorio de cultivos celulares en la Facultad de Medicina de Valencia, en donde desarrolló una técnica diagnóstica nueva para el virus de la polio. Por otra parte, se llevaron a cabo estudios epidemiológicos antes y después de la campaña de vacunación de 1963, que demostraron la eficacia de la vacuna oral de Sabin y su inocuidad.// Els estudis sobre el virus de la pòlio van començar a València en 1959 de la mà del microbiòleg Vicente Sanchis-Bayarri Va…