Researchers find ‘Lithuanian variant’ of coronavirus 74 Vilnius University Life Science Centre Laboratory (associative image) / J. Stacevičius/LRT A specifically ‘Lithuanian’ mutation of the coronavirus has been spreading in Lithuania, researchers have found. It is not more dangerous than most other variants and has been detected in several other countries in Northern Europe. “If a country is closed down and put under quarantine, no one is leaving and no one is coming in, this creates an incubator for the virus where it has more opportunities to mutate,” Danielius Naumovas, the head of the Biobank of Santara Clinics, told LRT TV.