More than a a year ago, when the FDA expanded the Emergency Use Authorization for the Pfizer pseudovaccine (to 12 year-olds) wrote:
Scare stories about long-term adverse effects on male fertility are still just scare stories; but I think it’s worth watching for.
Just in case, ladies: I am not pseudovaxxed. And I am available for personal sperm donations. Send pictures.
Long-term effects still aren’t really known, since it the Pseudovax hasn’t been fielded for a long time (and remember that they scrapped the human trials control group). But this paper, published two days ago, is interesting.
Covid-19 vaccination BNT162b2 temporarily impairs semen concentration and total motile count among semen donors
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.
T3 evaluation demonstrated overall recovery. Semen volume andspermmotility were not impaired.
It was a relatively small study: 37 sperm donors with 220 samples. They checked the sperm count before pseudovaccination, then three times after vax.
It should be somewhat reassuring that sperm count recover by T3 (which they call “long term”). But considering that it’s still short of two years since the beginning of human trials, there’s really no such thing as long term data on male fertility. This study only covered a six month period.
I’m not making predictions one way or another, but I plan to watch the US birth rate for next few years.
And I’m still not getting pseudovaxxed.
As an aside, one really needs to read these studies carefully. On my first skim over the Methods section, I thought I read that a single donor provided 63 samples, which seemed impressive. You gotta watch those abbreviations; it was one donation center, not one dedicated dude.
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