By January 1990, Hazelton Laboratories recovered from its previous losses and began importing monkeys again from the same establishment in Manila that had provided the original animals.
En xaneiro de 1990, os Laboratorios Hazelton recuperáronse das súas previas perdas e empezaron a importar monos de novo do mesmo establecemento de Manila, Filipinas, que proporcionara os animais orixinais.