Effectiveness of a fourth SARS-CoV-2 vaccine dose in previously infected individuals from Austria

The document (link below) was contributed by:
Alena Chalupka, Lukas Richter, Ali Chakeri, Ziad El-Khatib, Verena Theiler-Schwetz, Christian Trummer, Robert Krause, Peter Willeit, Bernhard Benka, John P. A. Ioannidis, Stefan Pilz

No protection against death

Hier die Zusammenfassung für alle die nicht die ganze Studie lesen wollen.