Inoculation with Moderna COVID-19 vaccine begins
Inoculation with Moderna COVID-19 vaccine begins / Gulliver/Getty Images
A shipment of 2,400 doses of the Moderna COVID-19 vaccine arrived in Bulgaria on January 13
Inoculation against COVID-19 with the vaccine of the American company Moderna began on Thursday morning at the University Hospital of Obstetrics and Gynecology "Maichin Dom" in Sofia. 

А shipment of 2,400 doses of the Moderna COVID-19 vaccine arrived in Bulgaria on January 13. All of them will be distributed in the capital city.
Another 4,000 doses the Moderna COVID-19 vaccine are expected by the end of January and will be delivered in other regions.

Inoculation with the Moderna COVID-19 vaccine requires two doses. The second dose is administered 28 days after the first one. 

Source NOVA