Virus that causes COVID-19 can remain in sperm for 110 days after infection.
"The authors suggest that people who plan to have children should observe a period of "quarantine" after recovering from COVID-19."
Source: https://medicalxpress.com/news/2024-06-virus-covid-sperm-days-infection.html
Published study: https://onlinelibrary.wiley.com/doi/abs/10.1111/andr.13612