Sperm quality is not affected by the BNT162b2 mRNA SARS-CoV-2 vaccine: results of a 6-14 months follow-up.

Purpose: We aimed to investigate the possible effect of SARS-CoV-2 vaccination on sperm quality by evaluating semen analyses of men prior to vaccination and 6-14 months after vaccination.

Methods: This was a retrospective cohort study, conducted in a university-affiliated in vitro fertilization center between October 2021 and March 2022, including men not previously infected with the SARS-CoV-2 virus who received at least 2 doses of the Pfizer-BioNTech (BNT162b2) SARS-CoV-2 vaccine. Semen analyses of samples given pre-vaccination and 6-14 months post-vaccination were analyzed for the parameters of volume, concentration, motility, morphology, and total motile count (TMC) and compared.

Parameters associated with sperm quality prior to chemotherapy in lymphoma patients.

Sperm quality in lymphoma patients may be reduced even prior to initiation of chemotherapy. The objective of this study was to examine the relationship between lymphoma prognostic factors and sperm quality prior to chemotherapy. A retrospective cohort study was conducted in a Hadassah Medical Center sperm bank and the Hematology department.