We could actually take these 99 different viruses, look at them and compare them, and we could see, actually, compared to three genomes that had been previously published from Guinea, we could show that the outbreak emerged in Guinea months before, once into the human population, and from there had been transmitting from human to human.
Pudemos agarrar  nestes 99 vírus diferentes, observá-los e compará-los. Pudemos ver, em comparação com três genomas que tinham sido publicados na Guiné, pudemos ver que o surto surgido na Guiné, meses antes, na população humana, tinha-se transmitido de pessoa para pessoa.