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Rafael Ignacio Araos Bralic

Principal Investigator

Universidad del De

Santiago, Chile

I study the epidemiology of infectious diseases with a focus on emerging respiratory pathogens and antimicrobial-resistant bacteria. I have designed, executed, and analyzed cohort studies in Chile and abroad.

MD, UNIVERSIDAD DE LOS ANDES. Chile, 2003
Internal Medicine, UNIVERSIDAD DE CHILE. Chile, 2007
Infectious Diseases, PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE. Chile, 2009
Master in Medical Sciences, HARVARD UNIVERSITY. Estados Unidos, 2014

Principal Investigator Full Time

UNIVERSIDAD DEL DESARROLLO

Santiago, Chile

2016 - At present
Post doctoral fellow Full Time

Beth Israel Deaconess Medical Center

Boston, Estados Unidos

2012 - 2015

Chief Epidemiology Department, Chief Covid-19 Advisor, Undersecretary of Public Health Full Time

Ministry of Health

Santiago, Chile

2020 - 2022
Chief, Division of Infectious Diseases Full Time

Clínica Alemana de Santiago

Santiago, Chile

2015 - 2020
External Advisor (Consejo Asesor Covid-19, now Comité Nacional de Respuesta Pandémica) Other

Ministry of Health

Santiago, Chile

2020 - At present


Duration of effectiveness of vaccines against SARS-CoV-2 infection and COVID-19 disease: results of a systematic review and meta-regression Daniel R Feikin, Melissa M Higdon, Laith J Abu-Raddad, Nick Andrews, Rafael Araos, Yair Goldberg, Michelle J Groome, Amit Huppert, Katherine L O'Brien, Peter G Smith, Annelies Wilder-Smith, Scott Zeger, Maria Deloria Knoll, Minal K Patel, Article LANCET (2022)
Effectiveness of an Inactivated SARS-CoV-2 Vaccine in Children and Adolescents: A Large-Scale Observational Study Alejandro Jara, Eduardo A Undurraga, Juan Carlos Flores, José R Zubizarreta, Cecilia Gonzalez, Alejandra Pizarro, Duniel Ortuño-Borroto, Johanna Acevedo, Katherinne Leo, Fabio Paredes, Tomas Bralic, Veronica Vergara, Francisco Leon, Ignacio Parot, Paulina Article The Lancet Regional Health Americas (Available at the Preprints with The Lancet Server) (2022)
Effectiveness of CoronaVac in children 3 to 5 years during the omicron SARS-CoV-2 outbreak Rafael Araos, Alejandro Jara, Eduardo Undurraga, Jose Zubizarreta, Cecilia Gonzalez, Johanna Acevedo, Alejandra Pizarro, Veronica Vergara, Mario Soto Marchant, Rosario Gilabert, Juan Carlos Flores, Pamela Suarez, Paulina Leighton, Pablo Eguiguren, Juan Ca Article Nature Medicine (Preprint available at ResearchSquare server) (2022)
Effectiveness of homologous and heterologous booster doses for an inactivated SARS-CoV-2 vaccine: a large-scale prospective cohort study Alejandro Jara, Eduardo A Undurraga, José R Zubizarreta, Cecilia González, Alejandra Pizarro, Johanna Acevedo, Katherinne Leo, Fabio Paredes, Tomás Bralic, Verónica Vergara, Marcelo Mosso, Francisco Leon, Ignacio Parot, Paulina Leighton, Pamela Suárez, Ju Article LANCET GLOBAL HEALTH (2022)
Effectiveness of an Inactivated SARS-CoV-2 Vaccine in Chile Jara, Alejandro; Undurraga, Eduardo A.; Gonzalez, Cecilia; Paredes, Fabio; Fontecilla, Tomas; Jara, Gonzalo; Pizarro, Alejandra; Acevedo, Johanna; Leo, Katherine; Leon, Francisco; Sans, Carlos; Leighton, Paulina; Suarez, Pamela; Garcia-Escorza, Heriberto; Araos, Rafael Article ISI NEW ENGLAND JOURNAL OF MEDICINE (2021)
Effectiveness of an Inactivated SARS-CoV-2 Vaccine. Reply. Alejandro Jara, Eduardo A Undurraga, Rafael Araos Article NEW ENGLAND JOURNAL OF MEDICINE (2021)
Evaluation of two fluorescence immunoassays for the rapid detection of SARS-CoV-2 antigen-new tool to detect infective COVID-19 patients Porte, Lorena; Legarraga, Paulette; Iruretagoyena, Mirentxu; Vollrath, Valeska; Pizarro, Gabriel; Munita, Jose; Araos, Rafael; Weitzel, Thomas Article ISI PEERJ (2021)
Isolation of Ciprofloxacin and Ceftazidime-Resistant Enterobacterales From Vegetables and River Water Is Strongly Associated With the Season and the Sample Type Diaz-Gavidia, Constanza; Barria, Carla; Rivas, Lina; Garcia, Patricia; Alvarez, Francisca P.; Gonzalez-Rocha, Gerardo; Opazo-Capurro, Andres; Araos, Rafael; Munita, Jose M.; Cortes, Sandra; Olivares-Pacheco, Jorge; Adell, Aiko D.; Moreno-Switt, Andrea I. Article ISI FRONTIERS IN MICROBIOLOGY (2021)
Selective digestive decontamination with oral colistin plus gentamicin for persistent bacteraemia caused by non-carbapenemase-producing carbapenem-resistant Klebsiella pneumoniae in a neutropenic patient Spencer-Sandino, Maria; Riquelme-Neira, Roberto; Shropshire, William C.; Dinh, An Q.; Gonzalez-Rocha, Gerardo; Gonzalez-Munoz, Paulina; Vera-Leiva, Alejandra; Araos, Rafael; Hanson, Blake; Arias, Cesar A.; Munita, Jose M. Article ISI (2021)
The story behind Chile's rapid rollout of COVID-19 vaccination Ximena Aguilera, Adrian P Mundt, Rafael Araos, Thomas Weitzel Article TRAVEL MEDICINE AND INFECTIOUS DISEASE (2021)
Tool for Estimating the Probability of Having COVID-19 With 1 or More Negative RT-PCR Results Alejandro Jara, Eduardo A Undurraga, Rafael Araos Article OPEN FORUM INFECTIOUS DISEASES (2021)
Covid-19 in South America: clinical and epidemiological characteristics among 381 patients during the early phase of the pandemic in Santiago, Chile Vial, Macarena R.; Peters, Anne; Perez, Inia; Spencer-Sandino, Maria; Barbe, Mario; Porte, Lorena; Weitzel, Thomas; Aylwin, Mabel; Vial, Pablo; Araos, Rafael; Munita, Jose M.; CAS-UDD Covid-19 Working Grp Article ISI BMC INFECTIOUS DISEASES (2020)
Evaluation of a novel antigen-based rapid detection test for the diagnosis of SARS-CoV-2 in respiratory samples Porte, Lorena; Legarraga, Paulette; Vollrath, Valeska; Aguilera, Ximena; Munita, Jose M.; Araos, Rafael; Pizarro, Gabriel; Vial, Pablo; Iruretagoyena, Mirentxu; Dittrich, Sabine; Weitzel, Thomas Article ISI INTERNATIONAL JOURNAL OF INFECTIOUS DISEASES (2020)
The human microbiota and infection prevention. Araos, R; D'Agata, Erika M C Article Infection control and hospital epidemiology (2019)
Acquisition of Multidrug-resistant Organisms in the Absence of Antimicrobials. D'Agata, Erika M C; Varu, Aby; Geffert, Sara F; Araos, Rafael; Mitchell, Susan; Situ, Aaron; Cameron, Chris Article Clinical infectious diseases => an official publication of the Infectious Diseases Society of America (2018)
Fecal Microbiome Among Nursing Home Residents with Advanced Dementia and Clostridium difficile. Araos, Rafael; Andreatos, Nikolaos; Ugalde, Juan; Mitchell, Susan; Mylonakis, Eleftherios; D'Agata, Erika M C Article Digestive diseases and sciences (2018)
[Leprosy=> we figth the disease not those who suffer from it]. Vial, Pablo A; Araos, Rafael Article Revista chilena de infectologia => organo oficial de la Sociedad Chilena de Infectologia (2017)
[Safety of fluoroquinolones=> risks usually forgotten for the clinician]. González M, Claudio; Rosales C, Ruth; Pavez, Daniela; Fuenzalida, Luz M; Soto, Andrés; Pérez, Regina; Pérez, Jorge; Araos, Rafael; Pinto, M Eugenia Article Revista chilena de infectologia => organo oficial de la Sociedad Chilena de Infectologia (2017)
Microbial Disruption Indices to Detect Colonization With Multidrug-Resistant Organisms. Araos, Rafael; Montgomery, Veronica; Ugalde, Juan A; Snyder, Graham M; D'Agata, Erika M C Article Infection control and hospital epidemiology (2017)
Multicenter Evaluation of Ceftolozane/Tazobactam for Serious Infections Caused by Carbapenem-Resistant Pseudomonas aeruginosa. Munita, Jose M; Aitken, Samuel L; Miller, William R; Perez, Federico; Rosa, Rossana; Shimose, Luis A; Lichtenberger, Paola N; Abbo, Lilian M; Jain, Rupali; Nigo, Masayuki; Wanger, Audrey; Araos, Rafael; Tran, Truc T; Adachi, Javier; Rakita, Robert; Shelburne, Samuel; Bonomo, Robert A; Arias, Cesar A Article Clinical infectious diseases => an official publication of the Infectious Diseases Society of America (2017)
Virus Zika en un nuevo mundo. Vial Claro, PA; Araos Bralic, RI Article Revista Chilena de Pediatria (2016)
Predominance of Lactobacillus spp. Among Patients Who Do Not Acquire Multidrug-Resistant Organisms. Araos, Rafael; Tai, Albert K; Snyder, Graham M; Blaser, Martin J; D'Agata, Erika M C Article Clinical infectious diseases => an official publication of the Infectious Diseases Society of America (2016)
Daptomycin: Pharmacologycal Characteristics and its Role in the treatment of Gram Positive Infections Araos R, Chanqueo L, Garcia P, Labarca J Article Revista Chilena de Infectologia (2012)
Bacteremia in patients with liver cirrhosis Munita S JM, Araos B R Article Revista Chilena de Infectologia (2011)
Human bocavirus in Chile: clinical characteristics and epidemiological profile in children with acute respiratory infections Flores C JC, Vizcaya A C, Araos B R, Ferres G M Article Revista Chilena de Infectologia (2011)
Cat scratch disease associated neuroretinitis: clinical report and review of the literature Perez G J, Munita S JM, Araos B R Article Revista Chilena de Infectologia (2010)
Pandemic Influenza A (H1N1) 2009 with neurological manifestations, a case series Noriega LM, Verdugo RJ, Araos R, Vial P Article Influenza and Other Respiratory Viruses (2010)


Lepra: combatimos la enfermedad no a los que la sufren Pablo A. Vial; Rafael Araos Editorial SCIELO SCOPUS REVISTA CHILENA DE INFECTOLOGIA (2017)


Platforms for Covid-19 surveillance and evaluations of interventions in Chile. Araos, Rafael Proyecto (2022)
Transforming antimicrobial-resistance Surveillance in Chile Araos, Rafael Proyecto (2021)
Hospital and community burden of multidrug-resistant gram-negative bacteria in Chile Centers for Disease Control and Prevention; Broad Agency Announcements (BAA) FY2018-OADS-01 (75D30118C02925) Proyecto 2018-2019 Inv. Principal
Nucleo Milenio para la Investigación Colaborativa en Resistencia Bacteriana (MICROB-R) Iniciativa Científica Milenio, Ministerio de Economía (Sin Folio) Proyecto 2018-2021 Investigador(a)
Determinants for tuberculosis infection acquisition in contacts=> exploring the role of nasopharyngeal mucosal environment. FONDECYT (1171570) Proyecto 2017-2020 Coinvestigador(a)
Rectal microbiome disruption indices associated with acquisition of multidrug- resistant organisms among subjects exposed to antimicrobials Centers for Disease Control and Prevention; Broad Agency Announcements (BAA) FY2016-OADS-01 (200-2016-91934) Proyecto 2016-2017 Coinvestigador(a)
MaucoBiome Fondo de Financiamiento de Centros de Investigación en Areas Prioritarias (FONDAP), CONICYT (Advanced Center for Chronic Diseases (ACCDiS)) Proyecto 2014-2024 Investigador(a)