translation.bs: Bugarski naučnici patentirali su novi bio-proizvod baziran na ćelijama patke, koji bi se mogao koristiti za HPV vakcine, izjavio je 3. jula Ivan Ivanov sa Instituta za eksperimentalnu patologiju i parazitologiju pri Bugarskoj akademiji nauka.
translation.en: Bulgarian scientists patented a new bio product based on duck cells, which could be used for HPV vaccines, the Institute of Experimental Pathology and Parasitology at the Bulgarian Academy of Science's Ivan Ivanov said on July 3rd.