(Laughter) Tyrone Hayes: It was a surprise to me as well that I would be talking about pesticides, that I'd be talking about public health, because, in fact, I never thought I would do anything useful.
(Risos) Tyrone Hayes: Eu também fiquei surpreendido por ir falar sobre pesticidas, por ir falar sobre saúde pública, porque nunca pensei que pudesse  fazer qualquer coisa de útil.