From May 1, 2022, it will be even easier for Italians to travel to Kenya and, above all, back.
Given that, since March 1, the Italian government has reopened travel to the former E list countries, among which are almost all African destinations, including Kenya, for the past two months it has been possible for non-vaccinated persons to enter through airport customs in Nairobi and Mombasa and spend a maximum period of 90 days (renewable online) in the country.
NO MORE TAMPON FOR THE VACCINATED
For those vaccinated with at least two doses, the trip now does not require the mandatory PCR swab, either by the two governments or by the airlines (however, better to inquire because the rules change often, especially for airport transits).
Same thing for the return quarantine: in no case (if not with symptoms attributable to the virus and prior swabbing on arrival) you will have to perform the quarantine. Just as there will no longer be to present the swab, both molecular and antigenic, on arrival, nor to do so before leaving. 
In fact, since March 12, Kenya no longer requires a molecular or antigenic swab when you have to leave.
So it remains only the obligation to have certificate of at least two vaccinations, or Green Pass (also from healing, with limitations of validity that we report below).
ALSO THE UNVACCINATED CAN ENTER KENYA, PROVIDED THAT:
Even unvaccinated people can, for the first time, travel to Kenya. For them, the dynamics are still quite complex. It takes the PCR swab that is needed both to leave from Italy and to arrive in Kenya, upon arrival in Kenya will be required to a swab antigenic (cost $ 30) at the airport and in case of positivity to a PCR ($ 50) that if confirmed positivity would force the traveler to isolation in the home reported on the visa online.
FURTHER: The Embassy of Kenya in Italy warns that for those not vaccinated is required a certificate stating the reasons why you could not vaccinate. How to say that are accepted reasons for health (healing, inability to other diseases, etc. ...) but not those conceptual.
There will not be, in departure from Italy, to fill out the Passenger Locator Form, but only to upload the certificate of double vaccination (it is not required the third or any other "booster") on the site globalhaven.org. Then, however, submit the relevant paper. For those who have a Healing Green Pass and haven't done the vaccinations, the globalhaven.org website hardly accepts this option, so both the Embassy of Kenya in Rome and the Kenyan airport authorities advise first of all to contact your airline to make sure it is aware of the new provisions, and then to print the Healing Green Pass and bring it with you. It is considered valid by the Kenyan authorities if it is no older than 90 days (source: Africa CDC, taken from the Embassy of Kenya in Italy with a statement that you can print out here and take with you just in case). Kenya also does not require vaccinations for minors, but since it has also opened to "no vax" all those over the age of 5, although not uploaded on the global haven portal, must present the vaccination certificate, or undergo a PCR swab on departure and antigenic swab on arrival, with an additional medical letter. For any other information, look under the card of Kenya, on the site viaggiaresicuri.it of the Ministry of Foreign Affairs.

We summarize then the obligations in force in Kenya to access it.
DOUBLE VACCINATION CERTIFICATE OR GREEN PASS
First of all, it will be necessary to upload
PCR AND PLF SWAB NO LONGER MANDATORY
To embark on a plane with final destination Kenya, if fully vaccinated, it is no longer necessary to be equipped with a certificate of negativity by PCR swab. It is advisable, however, to make sure that the airlines are on this line and do not require the swab and if any transit airports do not force passengers to arrive with the results of any test.

ENTERING KENYA

As is well known, Kenya accepts tourists from Italy, and the immigration office at the airports of Nairobi and Mombasa, will stamp the tourist visa equivalent to the return date indicated on the online visa, unless otherwise indicated by the tourist, up to 3 months.
The same tourist visa will then eventually be renewable for another 3 months, but only online.
The cost of the visa is 51 USD, which with the transaction becomes 53, so at the current exchange rate of 48 euros.
We would like to remind you that it is no longer possible to apply for a paper visa on arrival in Kenya, and that in order to fill in the visa online you must go to the link evisa.go.ke on the Kenyan website. The practice can be resolved even in 24 hours, so it is recommended to make the visa at least two days before leaving.
JITENGE: You may be required to download the "Jitenge Moh" APP on your cell phone and report your destination. If so, just type Jitenge Moh App into Google and the app will come up for download, then follow the directions. 
Also, as of March 12, a face mask is no longer mandatory in open places in Kenya.
TO RETURN FROM KENYA
From March 1, 2022 to return from Kenya, as mentioned the Italian state no longer requires neither swab nor quarantine. It will be enough to show your green pass. FROM MAY 1st 2022 IT WILL NO LONGER BE MANDATORY TO COMPLETE THE PDF, as decided by Minister Speranza. (Article here: https://www.malindikenya.net/en/articles/news/last-news/1st-may--no-more-plf-back-from-kenya-.html)
Just as airport authorities are not required to ask for PCR swabs on exit. The important thing, as at departure, is to make sure that it is not required by your airline or any transit airport.