[Obtention of specific antisera for the serotyping of Cryptococcus neoformans var. neoformans].

The obtention of antisera at the Mycology Laboratory of "Pedro Kouri" Institute of Tropical Medicine was proposed to allow the rapid identification of the varieties and serotypes of Cryptococcus neoformans, since it is very important from the clinico-epidemiological point of view to know them. By immunizing rabbits with formalized whole cells of the 4 serotypes of this yeast, it was possible to obtain antisera that were absorbed with cells of the heterologous serotypes. 3 antisera capable of differentiating the neoformans var.