The performance of laboratory tests in the management of a large outbreak of orally transmitted Chagas disease oleh Belkisyolé Alarcón de Noya, Zoraida Díaz-Bello, Cecilia Colmenares, Reinaldo Zavala-Jaspe, Teresa Abate, Rosa Contreras, Sandra Losada, Domingo Artigas, Luciano Mauriello, Raiza Ruiz-Guevara, Oscar Noya