Assertion: virus's discovery | /r/HasProperty | initial
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Source sentences:
text: Since their initial discovery, giant viruses have been recovered from melting permafrost in Siberia, the depths of the Antarctic ocean and highly alkaline soda lakes, as well as less exotic environments, said Chantal Abergel, research director of the Structural and Genomic Information laboratory at the French National Centre for Scientific Research, who was not involved in the study.