Frequency of IgE antibody response to SARS-CoV-2 RBD protein across different disease severity COVID19 groups.

Background: COVID-19 appears to have a progression of three stages. The latter stage is characterized by a high level of cytokine release, which in turn triggers an uncontrolled reaction known as cytokine storm where mast cells are involved. The presence of anti-IgE antibodies against SARS-CoV-2 in this phase has been previously reported, suggesting an association with the severity of the disease.

Utility of the combination of high fluorescence cells and tumor markers for the diagnosis of malignant pleural effusions.

Background: New diagnostic tools have emerged to assist the traditional diagnosis of malignant pleural effusion (MPE), such as high fluorescence cells (HFc) and tumor markers (TMs), determined by clinical laboratory automated pleural fluid workup. This study aimed to evaluate the diagnostic ability of the combination of HFc and TMs for diagnosing MPE.

Methods: We recruited hospitalized patients with pleural effusion at Parc Taulí University Hospital.