María S Navarrete

ORCID: 0000-0002-5411-4498
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About
Contact & Profiles
Research Areas
  • COVID-19 Clinical Research Studies
  • SARS-CoV-2 and COVID-19 Research
  • Vaccine Coverage and Hesitancy
  • Viral gastroenteritis research and epidemiology
  • Hepatitis Viruses Studies and Epidemiology
  • Long-Term Effects of COVID-19
  • Viral Infections and Immunology Research
  • Meta-analysis and systematic reviews
  • Healthcare cost, quality, practices
  • Infection Control in Healthcare
  • scientometrics and bibliometrics research
  • Health Systems, Economic Evaluations, Quality of Life
  • Pharmaceutical industry and healthcare
  • Protein Degradation and Inhibitors
  • Healthcare Policy and Management
  • Medical Device Sterilization and Disinfection
  • Public Health and Social Inequalities
  • Health Sciences Research and Education
  • Contact Dermatitis and Allergies
  • Empathy and Medical Education
  • Lung Cancer Research Studies
  • Antibiotic Use and Resistance
  • Social Sciences and Policies
  • Health and Medical Research Impacts
  • Healthcare Systems and Technology

Pontificia Universidad Católica de Chile
2021-2023

Universidad de Santiago de Chile
2018-2023

Red de Investigación Cardiovascular
2023

Universidad de Ciencias Medicas
2019

Universidad Bernardo O'Higgins
2019

University of Chile
2015-2016

Universidad Independiente
2013

Fundación Chile
2007

Constant efforts to prevent infections by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are actively carried out around the world. Several vaccines currently approved for emergency use in population, while ongoing studies continue provide information on their safety and effectiveness. CoronaVac is an inactivated SARS-CoV-2 vaccine with a good immunogenicity profile as seen phase 1, 2, 3 clinical trials world, effectiveness of 65.9% symptomatic cases. Although vaccination...

10.3389/fimmu.2021.742914 article EN cc-by Frontiers in Immunology 2021-09-29

CoronaVac is an inactivated SARS-CoV-2 vaccine approved by the World Health Organization (WHO). Previous studies reported increased levels of neutralizing antibodies and specific T cells 2 4 weeks after two doses CoronaVac; these were significantly reduced at 6 to 8 months doses. Here, we report effect a booster dose on anti-SARS-CoV-2 immune response generated against variants concern (VOCs), Delta Omicron, in adults participating phase III clinical trial Chile. Volunteers immunized with...

10.1128/mbio.01423-22 article EN cc-by mBio 2022-08-10

•The built hospital environment serves as a significant and continuous reservoir of microbes capable colonizing infecting patients.•Cleaning, hand hygiene, infection control bundles while effective cannot completely eliminate this risk.•Augmenting the with continuously active antimicrobial surfaces fabricated from U.S. Environmental Protection Agency–registered copper can significantly lower microbial burden, helping to augment existing strategies.•Addition limited number copper-surfaced...

10.1016/j.ajic.2016.03.053 article EN cc-by-nc-nd American Journal of Infection Control 2016-06-21
Constanza Méndez Hernán F. Peñaloza Bárbara M. Schultz Alejandro Piña-Iturbe Mariana Ríos and 95 more Daniela Moreno-Tapia Patricia Pereira-Sánchez Diane Leighton Claudia Orellana Consuelo Covarrubias Nicolás M. S. Gálvez Jorge A. Soto Luisa F. Duarte Daniela Rivera-Pérez Yaneisi Vázquez Alex Cabrera Sergio Bustos Carolina Iturriaga Marcela Urzúa María S Navarrete Álvaro Rojas Rodrigo Fasce Jorge Onrubia Fernández Judith Mora Eugenio Ramı́rez Aracelly Gaete-Argel Mónica L. Acevedo Fernando Valiente‐Echeverría Ricardo Soto‐Rifo Daniela Weiskopf Alba Grifoni Alessandro Sette Gang Zeng Weining Meng José Vicente González-Aramúndiz Pablo A. González Katia Abarca Felipe Melo-González Susan M. Bueno Alexis M. Kalergis Álvaro Rojas María S Navarrete Constanza del Río Dinely Del Pino Natalia Aguirre Grecia Salinas Franco Vega Acsa Salgado Thomas Quinteros Marlene Ortiz Marcela Puente Alma Muñoz Patricio Astudillo Nicole Le Corre Marcela Potı́n J.P. Catalán Melan Peralta Consuelo Zamanillo Nicole Keller Rocío Fernández Sofía Aljaro Sofía López José Tomás González Tania Weil Luz Opazo P. Rubio Muñoz Inés Estay Miguel Cantillana Liliana Carrera Matías Masalleras Paula Guzmán Francisca Aguirre Aarón Cortés Luis Federico Bátiz Javiera Pérez Karen Apablaza L. D. Yates María de los Ángeles Valdés Bernardita Hurtado Veronique Venteneul Constanza Astorga Paula Muñoz Venturelli Pablo Vial Andrea Schilling Daniela Pavez Inia Pérez Amy Riviotta Francisca González Francisca Urrutia Alejandra Del Río Claudia Asenjo Bárbara Vargas Francisca Dias de Castro Alejandra Acuña Javiera Guzmán Camila Astudillo Carlos M. Pérez Pilar Espinoza Andrea Martínez Marcela Arancibia

BackgroundThe Omicron variant has challenged the control of COVID-19 pandemic due to its immuno-evasive properties. The administration a booster dose SARS-CoV-2 vaccine showed positive effects in immunogenicity against SARS-CoV-2, effect that is even enhanced after second booster.MethodsDuring phase-3 clinical trial, we evaluated CoronaVac®, an inactivated administered 6 months first booster, neutralization (n = 87). In parallel, cellular immunity 45) was analyzed stimulated peripheral...

10.1016/j.ebiom.2023.104563 article EN cc-by-nc-nd EBioMedicine 2023-04-24

Potential cost effectiveness of a rotavirus vaccine in ChileBackground: Cost studies are essential to assess the real value interventions with preventive or therapeutic objectives.Aim: To theoretical costeffectiveness against Chilean children less than five years age.Material and methods: An economic model was developed based on information disease incidence, health care costs associated treatment vaccination.Net vaccination were estimated from system perspective compared life...

10.4067/s0034-98872006000600002 article EN Revista médica de Chile 2006-06-01

Background: The development of vaccines to control the coronavirus disease 2019 (COVID-19) pandemic progression is a worldwide priority. CoronaVac an inactivated severe acute respiratory syndrome 2 (SARS-CoV-2) vaccine approved for emergency use with robust efficacy and immunogenicity data reported in trials China, Brazil, Indonesia, Turkey, Chile. Methods: This study randomized, multicenter, controlled phase 3 trial healthy Chilean adults aged ≥18 years. Volunteers received two doses...

10.7554/elife.81477 article EN cc-by eLife 2022-10-10

Background: Incorporation of new rotavirus vaccines into national programs developing countries will rely on well-designed cost-effective analysis based accurate assessment disease burden. For Chile, burden is determined mostly by outpatient clinic and emergency room visits hospitalizations. We previously estimated a yearly incidence 8000 53,000 hospitalizations respectively for children ≤3 years age. Objective: The objective this study was to quantify the impact as cause visits. Methods: A...

10.1097/01.inf.0000247104.01291.71 article EN The Pediatric Infectious Disease Journal 2006-12-20

University ranking systems and the publish-or-perish dictum, among other factors, are driving universities researchers around world to increase their research productivity. Authors frequently report multiple affiliations in published articles. It is not known if reported institutional real affiliations, which when have contributed substantially conducted manuscript. This study aims establish whether there an empirical basis for author affiliation misrepresentation authors with...

10.1136/bmjopen-2018-023983 article EN cc-by-nc BMJ Open 2019-02-01

Abstract Background CoronaVac ® is an inactivated SARS-CoV-2 vaccine approved by the World Health Organization. Previous studies reported increased levels of neutralizing antibodies and specific T cells two- four-weeks after two doses , but are reduced at six to eight months doses. Here we report effect a booster dose on anti-SARS-CoV-2 immune response generated against variants concern (VOC) Delta Omicron in adults participating phase 3 clinical trial Chile. Methods Volunteers immunized...

10.1101/2021.11.16.21266350 preprint EN medRxiv (Cold Spring Harbor Laboratory) 2021-11-17

University ranking systems and the publish‐or‐perish dictum are driving universities researchers around world to increase their research productivity publication outputs. There is no regulated checking of author affiliations as authors expected only include that have contributed substantially conducted published manuscript. Our study aims establish whether can be validated if there evidence misrepresentation from who report multiple institutional affiliations. We an exploratory case on...

10.1002/leap.1257 article EN Learned Publishing 2019-08-20

Introduction Quality of reporting refers to how published articles communicate the research was done and what found. Gaps imprecisions hamper assessment methodological quality internal external validity. The CONsolidated Standards Reporting Trials (CONSORT) are a set evidence-based recommendations minimum elements be included in randomised controlled trials (RCTs) ensure complete transparent account done, it Few studies have been conducted on impact CONSORT RCTs Latin American Spanish...

10.1136/bmjopen-2019-036148 article EN cc-by-nc BMJ Open 2020-06-01

The COmmunity Cohort Study aims to determine, after natural exposure SARS-CoV-2 or anti-SARS-CoV-2 vaccines deployed in Chile prevent COVID-19 the context of current pandemic, strength and duration detectable neutralising antibodies adult ambulatory primary care patients with cardiovascular risk factors.

10.1136/bmjopen-2022-061345 article EN cc-by-nc BMJ Open 2022-05-01

Summary The SARS-CoV-2 Omicron variant has challenged the control of COVID-19 pandemic even in highly vaccinated countries. While a second booster mRNA vaccines improved immunity against SARS-CoV-2, humoral and cellular responses induced by an inactivated vaccine have not been studied. In context phase 3 clinical study, we report that CoronaVac ® increased neutralizing response ancestral virus yet showed poor neutralization variant. Additionally, isolated PBMCs displayed equivalent...

10.1101/2022.08.22.22279080 preprint EN cc-by-nc-nd medRxiv (Cold Spring Harbor Laboratory) 2022-08-23

Incidence of severe rotavirus gastroenteritis among Chilean children under three years age Background: Rotavirus infections account every year in Chile, for approximately 53,000 emergency consultations and 8,000 hospital admissions age.Aim: To estimate incidence rates <3 age, living the V VIII Regions to identify predominant viral serotypes.Material methods: A prospective hospital-based surveillance was implemented public private hospitals Viña del Mar Valparaíso (Region V) Chiguayante,...

10.4067/s0034-98872007000800003 article EN Revista médica de Chile 2007-08-01

Introducción En diciembre de 2019 surge un nuevo coronavirus que resultó en una pandemia consecuencias devastadoras. Chile activó dispositivos detección, aislamiento precoz los casos sospechosos y mandató medidas distanciamiento físico. Además, se gestionó rápido proceso inmunización, estableciendo grupos prioritarios según riesgo exposición complicación. A pesar todos avances la ciencia sobre covid-١٩, aún existen limitaciones el conocimiento dinámica significación clínica respuesta humoral...

10.5867/medwave.2024.s1.sp022 article ES cc-by-nc Medwave 2024-06-01

Based on the recommendations of Vaccine Advisory Committee and National Immunization Program, Chile implemented an early vaccination process population with vaccines from different laboratories. The study neutralizing antibody levels in subgroups contributes to establishment correlates protection against SARS-CoV-2 infection. In 2022 2023 we set up a community cohort 914 adults cardiovascular risk factors. this are measuring humoral immune response exposure antigens, either by or infection,...

10.5867/medwave.2023.11.2787 article ES cc-by-nc Medwave 2023-12-20

A well-informed diagnostic process results in better health outcomes and less overdiagnosis. While there have been studies conducted to explore doctors' knowledge, attitudes, practice regarding test information, are no reports from Latin America. We invited physician readers of a American medical journal answer survey on their professional demographic characteristics previous exposure information training. Two hundred fifteen responded, whom 88% agreed some extent that is helpful for...

10.5867/medwave.2023.01.2665 article EN cc-by-nc Medwave 2023-02-23

10.5867/medwave.2019.06.7660 article EN cc-by-nc Medwave 2019-07-26

10.5867/medwave.2018.03.7217 article EN cc-by-nc Medwave 2018-06-26
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