Dissecting the dynamics of SARS-CoV-2 reinfections in blood donors with pauci- or asymptomatic COVID-19 disease course at initial infection.

Background: Understanding the dynamics of SARS-CoV-2 reinfections is crucial for public health policy, vaccine development, and long-term disease management. However, data on reinfections in the general population remains scarce.

Objectives: This study aimed to investigate SARS-CoV-2 antibody dynamics among Austrian blood donors, representing healthy adults, over two years following primary infection and to evaluate the reinfection risk.

Epstein-Barr virus reactivation is not causative for post-COVID-19-syndrome in individuals with asymptomatic or mild SARS-CoV-2 disease course.

Purpose: Post-COVID-19-Syndrome (PCS) frequently occurs after an infection with severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). However, the understanding of causative mechanisms is still limited. Aim of this study was to determine the PCS rate among SARS-CoV-2 seropositive blood donors as representatives of supposedly healthy adults, who had experienced an asymptomatic or mild COVID-19 disease course, and to examine whether Epstein-Barr virus (EBV) is reactivated in individuals reporting PCS.

Intramedullary pressure and bone marrow fat intravasation in unreamed femoral nailing.

Objective: To investigate whether intramedullary pressure and bone marrow fat embolization are different in unreamed compared with conventional reamed femoral nailing. The null hypothesis is that there is no difference between the two techniques.

Design: A prospective consecutive nonrandomized clinical trial.

[Bankart operation with the Mitek anchor system].

We would like to introduce a new technique for the operation according to Bankart, incorporating a special system of refixation (Mitek-anchor-system). Up to now, Bankart's method is worldwide known as the operation method for correcting an anterior instability. The difficulties arising from the reinsertion of the capsula onto the glenoidal rim are responsible for the numerous modifications Bankart's method suffered.