How long does increased thromboembolic risk after symptoms of Covid 19 starts?

Mean of 12 days. The research letter published by Grillet et al described a study from Centre Hospitalier Universitaire de Besancon in France that pointed out that a high proportion (23%) of patients with COVID-19 who had undergone contrast CT had pulmonary embolus. Pulmonary embolus was diagnosed at mean of 12 days from symptom onset, and patients with pulmonary embolus were more likely require care in the critical care unit and to require mechanical ventilation.

Cases that would interest you