F
Freek Haarhuis
Publications - 4
Citations - 39
Freek Haarhuis is an academic researcher. The author has contributed to research in topics: Internal medicine & Medicine. The author has an hindex of 1, co-authored 1 publications receiving 4 citations.
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Journal ArticleDOI
Incidence and Risk Factors of COVID-19 Vaccine Breakthrough Infections: A Prospective Cohort Study in Belgium
Veerle Stouten,P. Hubin,Freek Haarhuis,Joris Af van Loenhout,M. Billuart,Ruben Brondeel,Toon Braeye,Herman Van Oyen,Chloé Wyndham-Thomas,Lucy Catteau +9 more
TL;DR: A prior COVID-19 infection lowered the risk of breakthrough infections and of having symptoms, highlighting the protective effect of hybrid immunity.
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COVID-19 cases, hospitalizations and deaths in Belgian nursing homes: results of a surveillance conducted between April and December 2020
Eline Vandael,Katrien Latour,Esma Islamaj,Laura Int Panis,Milena Callies,Freek Haarhuis,K. Proesmans,Brecht Devleesschauwer,Javiera Rebolledo Gonzalez,Alice Hannecart,Romain Mahieu,Louise de Viron,E. De Clercq,A. Kongs,Naïma Hammami,Jean-Marc Francois,Dominique Dubourg,Sarah Henz,Boudewijn Catry,Sara Dequeker +19 more
TL;DR: In this article , the authors describe the methodology of surveillance and epidemiology of COVID-19 cases, hospitalizations and deaths in Belgian NHs, which is essential to follow-up the spread of the virus in this setting.
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Confirmatory Methods, or Huge Samples, Are Required to Obtain Power for the Evaluation of Theories
TL;DR: It is shown that many of the common choices in hypothesis testing led to a severely underpowered form of theory evaluation and that confirmatory methods are required in the context of theory Evaluation and that the scientific literature would benefit from a clearer distinction between confirmatory and exploratory findings.
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Severity of infection with the SARS-CoV-2 B.1.1.7 lineage among hospitalized COVID-19 patients in Belgium
Nina Van Goethem,Mathil Vandromme,Herman Van Oyen,Freek Haarhuis,Ruben Brondeel,Lucy Catteau,Emmanuel André,Lize Cuypers,K. Blot,Ben Serrien +9 more
TL;DR: This matched observational cohort study did not find an overall increased risk of severe COVID-19 or death associated with B.1.1 .1.7 variant, however, potential selection biases advocate for more systematic sequencing of samples from hospitalized CO VID-19 patients.