Long Story Short Episode 79: Sperm Concentration Decreases Temporarily After COVID-19 Vaccination

In this study from Israel, researchers found that sperm concentration reduces after Pfizer-BionTech vaccine, and then recovers after some months. Here are the results they posted with the study:

Repetitive measurements revealed −15.4% sperm concentration decrease on T2 (CI −25.5%–3.9%, p = 0.01) leading to total motile count 22.1% reduction (CI −35% – −6.6%, p = 0.007) compared to T0. Similarly, analysis of first semen sample only and samples' mean per donor resulted in concentration and total motile count (TMC) reductions on T2 compared to T0 - median decline of 12 million/ml and 31.2 million motile spermatozoa, respectively (p = 0.02 and 0.002 respectively) on first sample evaluation and median decline of 9.5 × 106 and 27.3 million motile spermatozoa (p = 0.004 and 0.003, respectively) on samples' mean examination. T3 evaluation demonstrated overall recovery without. Semen volume and sperm motility were not impaired.

DrBeen: Medical Education Online
https://www.drbeen.com/

FLCCC | Front Line COVID-19 Critical Care Alliance
https://covid19criticalcare.com/

URL list from Thursday, Nov. 9 2023

FLCCC | Front Line COVID-19 Critical Care Alliance
https://covid19criticalcare.com/

Covid‐19 vaccination BNT162b2 temporarily impairs semen concentration and total motile count among semen donors - Gat - 2022 - Andrology - Wiley Online Library
https://onlinelibrary.wiley.com/doi/10.1111/andr.13209

Semen Analysis - Health Encyclopedia - University of Rochester Medical Center
https://www.urmc.rochester.edu/encyclopedia/content.aspx?contenttypeid=167&contentid=semen_analysis#:~:text=Sperm%20progressive%20motility%2C%20or%20the,Greater%20than%204%25%20normally%20shaped

Low sperm motility: Causes, ranges, and treatment
https://www.medicalnewstoday.com/articles/320160

Semen Analysis | Fertility Counseling and Gamete Cryopreservation | University of Michigan Rogel Cancer Center
https://www.rogelcancercenter.org/fertility-preservation/for-male-patients/sperm-banking-procedures/semen-analysis#:~:text=Total%20Motile%20Count%3A,motile%20sperm%20in%20the%20ejaculate.

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