Bertha Muñoz-Hernández

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Pulmonary coccidioidomycosis shares characteristics with other pulmonary pathologies. In tissue, spherules containing endospores are markers of Coccidioides immitis and C. posadasii infection. Mycelial forms presenting without classical parasitic structures are often misdiagnosed. The study was performed at the National Institute of Respiratory Diseases(More)
Coccidioides immitis and C. posadasii are etiologic agents of coccidioidomycosis. Major endemic zones are arid and semi-arid climates in North America, such as the northern Mexican states and the southwestern United States. Coccidioides spp. is a dimorphic fungus that forms arthroconidia during its mycelial phase while growing in soil. Coccidioides spp.(More)
Coccidioidin, an extract from the saprophytic mycelial form of Coccidioides spp., has been a very useful antigen preparation both for skin and serological tests for coccidioidomycosis. Unfortunately, coccidioidin is not currently available for skin testing in the United States. Coccidioidin has been produced commercially in Mexico by a vaccine and reagents(More)
Actinomycetomas represent 97.8% of mycetomas in Mexico, where 86.6% are produced by Nocardia brasiliensis. We report a case of actinomycetoma in the arm by Nocardia brasiliensis disseminated to lung. Uncommon grains were observed which present outside peripheral filaments and also numerous filaments loosing the grains. These characteristics of the grains(More)
BACKGROUND Coccidioides spp. is the ethiological agent of coccidioidomycosis, an infection that can be fatal. Its diagnosis is complicated, due to that it shares clinical and histopathological characteristics with other pulmonary mycoses. Coccidioides spp. is a dimorphic fungus and, in its saprobic phase, grows as a mycelium, forming a large amount of(More)
Blastomycosis is an acute or chronic primary infection of the respiratory system, endemic in North America (United States of America and Canada),Africa and Asia. We report a case in Mexico, in a three years old childwho had been born in California and lived in Chicago, U.S.A. The patientpresented pulmonary symptoms prior to development of a skin(More)
OBJECTIVE The aim of this study was to establish whether there was a histoplasmosis outbreak among a group of residents of Naucalpan (State of Mexico, a non-endemic area for histoplasmosis) and to ascertain the source through which they were infected. MATERIAL AND METHODS Anyone associated with the Index Case in the same period with a flu-like infection(More)
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