This is stated in a message on Facebook. 

Important: Inactivated CoronoVac can be used as a booster after other vaccines.

That is, if a person has received a basic course with the Comirnaty, Moderna or any other vaccine, he can receive a booster vaccination (both the first and second) with the CoronoVac vaccine.

These vaccination schedules are safe and protect against the risk of hospitalization and death due to coronavirus disease.

Photo: facebook.com/moz.ukr

So:

Adults 18 years of age and older should receive a basic course of vaccinations against COVID-19 with one dose of Janssen vaccine or two doses of vaccines (CoronaVac or Pfizer).

5 months after the primary course, all people over the age of 18 should receive the first booster vaccination.

4 months after the first booster vaccination, adults at risk of a severe course of COVID-19 must receive a second booster vaccination.

Other adults may also receive a second booster shot.

You can sign up for vaccination against COVID-19 today at your family doctor or by calling the contact center of the Ministry of Health at 0-800-602-019.

You can learn more about vaccination on the website vaccination.covid19.gov.ua.