RUIZ-PIÑA, Hugo Antonio, Miguel Angel PUC-FRANCO, Javier FLORES-ABUXAPQUI, Ignacio VADO-SOLÍS, and María Fidelia CÁRDENAS-MARRUFO. 2002. “ Isolation of Salmonella Enterica and Serologic Reactivity to Leptospira Interrogans in Opossums (Didelphis Virginiana) from Yucatán, México ”. Revista Do Instituto De Medicina Tropical De São Paulo 44 (4): 235-37. https://revistas.usp.br/rimtsp/article/view/30630.