acanthocystis turfacea chlorella virus 1 acanthocystis turfacea chlorella virus 1 acanthocystis turfacea chlorella virus 1 (atcv-1), also called chlorovirus atcv-1 or chlorella virus atcv-1 is a species of giant double-stranded dna virus in the genus chlorovirus. acanthocystis turfacea chlorella virus 1 virus classification (unranked): virus realm: varidnaviria kingdom: bamfordvirae phylum: nucleocytoviricota class: megaviricetes order: algavirales family: phycodnaviridae genus: chlorovirus species: acanthocystis turfacea chlorella virus 1 the host of atcv-1 is chlorella heliozoae; it was demonstrated that "atcv-1 neither attaches to nor infects" chlorella variabilis. human infection dna from atcv-1 has been isolated from the mucous membranes of the noses of humans. in both humans and mice, the presence of atcv-1 on the oropharyngeal mucosa was associated with lower scores in tests of cognitive and motor skills. injection of purified algal virus atcv-1 intracranially results in long-lasting cognitive and behavioural effects in mice via induction of inflammatory factors.