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COBRA re-KAI study: research into the immune response of COVID-19 revaccination after stem cell transplant or B-cel depleting immuno(chemo)therapy.

To answer the following questions: 1. Who are the patients that need to be revaccinated?2. How many vaccinations are needed to restore SARS-CoV-2 immunity?3. Can the number of vaccinations needed to restore SARS-CoV-2 immunity be predicted?To…

Rehabilitation of HAND and arm function using a Meta QUEST-based virtual reality game in ICU patients

Primary: To investigate the effect of a 4-week VR-exergame intervention on handgrip strength in patients staying in the ICU for 48 hours or longer compared to standard rehabilitation practices.Secondary: To investigate the longer term effect of a 4…

VASCO study: A population-based prospective cohort study on vaccine effectiveness of COVID-19 vaccines in the Netherlands

The primary objective is to estimate product-specific vaccine effectiveness (VE) of the COVID-19 vaccines that are used in the Dutch national vaccination program against symptomatic SARS-CoV-2 infection by age and medical risk group at a time point…