And as we thought this through and talked with public health experts and academics and privacy experts, it was pretty clear that obviously contract tracing is a complex endeavor that does require human resources, because there's a lot of very particular things that you need to do in having conversations with people as part of contact tracing.
À medida que pensávamos nisso conversávamos com especialistas da saúde pública, com académicos e com especialistas de privacidade, e ficou bem claro que o rastreamento de contactos é um esforço complexo que exige recursos humanos. Há muitas coisas particulares que é preciso fazer,  conversando com as pessoas, e fazem parte do rastreamento de contactos.