ðə sˌɪmɪlˈæɹᵻɾi ʌvðɪ ˈɛktiːvˌiː dʒˈiːnoʊm wɪððə dʒˈiːnoʊm ʌv ˈʌðɚ pˈɑːks vˈaɪɹəsᵻz, ʌvwˈɪtʃ ðɛɹˌɑːɹ fˈoːɹɾi dʒˈiːnoʊmz ʌv vˈɛɹiəs dʒˈɛnɚɹə, spˈiːsiːz ænd stɹˈeɪnz ʌv pˈɑːksvaɪɹəsᵻz, wʌz dɪtˈɜːmɪnd baɪ dɪtˈɜːmɪnɪŋ ðɛɹ ɐmˈiːnoʊ ˈæsɪd ɔːɹ nˈuːklɪˌɑːɾaɪd sˈiːkwəns.
The similarity of the ECTV genome with the genome of other pox viruses, of which there are 40 genomes of various genera, species and strains of poxviruses, was determined by determining their amino acid or nucleotide sequence.