In the past, you had to wait at home for 14 days, but it will be shortened to 10 days if you have:
1) Proof of vaccination (vaccine passport: issued by each local government) must be obtained.
2) If the PCR test is conducted on the 10th day after returning home and it is proven to be negative, the stay-at-home policy will be lifted from the 11th day. (Kenya is not a designated country for mutant strains.