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  • Title: Frequency of Cryptococcus species and varieties in México and their comparison with some Latin American countries.
    Author: Castañón-Olivares LR, Arreguín-Espinosa R, Ruiz-Palacios y Santos G, López-Martínez R.
    Journal: Rev Latinoam Microbiol; 2000; 42(1):35-40. PubMed ID: 10948827.
    Abstract:
    Cryptococcosis frequency is increasing in Mexico. Few epidemiologic and clinical surveys exist even though 10-15% of patients with AIDS develop this mycosis. To know the situation about the prevalence and etiological agents of cryptococcosis in our country, a study including isolated Cryptococcus spp. strains took place from 1989 to August 1998. A total of 211 Cryptococcus spp. strains obtained from patients of diverse hospital centers in Mexico City were studied. This study describes cryptococcosis epidemiological data, in our country. C. neoformans was the dominant isolation (97.15%), followed by two C. albidus isolation and one C. uniguttulatus isolation. 92.5% of the strains was isolated from cerebral spinal fluid and the remaining were from bone marrow, blood, ganglion, sputum, bronchial lavage and liver biopsy. AIDS was the principal opportunistic factor (85%). Strains were found prevails in males (87.3%). It was found that the age groups where the disease appears most frequently are in the fourth (37.5%) and third (33.8%) decade of life. Finally, the isolation frequency of the C. neoformans var. neoformans (vn) and var. gattii (vg) obtained in this study (vn 86.7%) and vg 10.4%) was compared with the ones registered in Argentina (vn 97.6%, vg 2.4%); Brazil (vn 83.3%, vg 15.8%); Cuba (vn 97.6%, vg 2.4%); Paraguay (vn 0%, vg 100.0%); Puerto Rico (vn 100.0%, vg 0%) and Venezuela (vn 66.7%, vg 29.6%).
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