Categories CoronaVirus News Covid-19 in Bulgaria: Omicron strain found in all 92 samples – NCIPD – The Sofia Globe Post author By mikenova12@gmail.com Post date June 2, 2023 Listen to this article Covid-19 in Bulgaria: Omicron strain found in all 92 samples – NCIPD The Sofia Globe ← Vectored immunoprophylaxis and treatment of SARS-CoV-2 infection in a preclinical model → COVID-19 update 2 June 2023 – WA Health