title: [Attempts at isolating CELO virus in Bulgaria].
mesh_terms: D000256:Adenoviridae / Q000302:isolation & purification*; D000818:Animals; D000259:Aviadenovirus / Q000302:isolation & purification*; D002031:Bulgaria; D002478:Cells, Cultured; D002645:Chickens / Q000382:microbiology*; D009500:Neutralization Tests; D011233:Precipitin Tests; D014776:Virus Cultivation
vernacular_title: Opiti za izolirane na CELO-virusi u nas