New insights into antibody levels against SARS-CoV-2 for healthcare personnel vaccinated with tozinameran (Comirnaty).

Aim: The aim of this study is to determine the levels of spike protein IgG and total antibodies in subjects vaccinated against SARS-CoV-2 (both infected and non-infected) and the titer evolution over time. In addition, we also addressed the performance of each of the included platforms in the study, as they are intended to measure antibody levels in naturally infected patients.

Materials And Methods: An observational study including 288 volunteer healthcare professionals vaccinated against SARS-CoV-2 (Comirnaty™) at the Andújar Alto Guadalquivir Hospital.

Prognostic value of plasmatic tumor M2 pyruvate kinase and carcinoembryonic antigen in the survival of colorectal cancer patients.

Colorectal cancer (CRC) can be cured in most cases if diagnosed at an early stage. Carcinoembryonic antigen (CEA) remains the most widely used cancer marker for determining prognosis of CRC. Previous studies have shown that plasmatic tumor M2 pyruvate kinase (Tu M2-PK) is highly sensitive in CRC detection at an early stage and equally as good as the results for established tumor markers with clinical potential for cancer prognosis and monitoring.

Lemierre's syndrome and septicaemia caused solely by Arcanobacterium haemolyticum in a young immunocompetent patient.

We present a case of septicaemia caused by Arcanobacterium haemolyticum in a previously healthy 23-year-old man suffering from acute pharyngotonsillitis, who developed complicated Lemierre's syndrome. Three blood cultures (both aerobic and anaerobic) revealed the exclusive presence of A. haemolyticum.