And so we started gathering scientists and started learning about population, learning about vaccines, learning about what had worked and what had failed, and that's really when we got going, was in late 1998, 1999.
それで科学者を集め 人口のデータやワクチンや 効果があったものと なかったものについて学びました この時ですね 活動を始めたのは 1998年の後半から 1999年でした