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House dust mites in the city of Lima, Peru.

Since mites are the most common house dust allergens, knowledge about the species most prevalent in a region is important for diagnostic and specific immunotherapy purposes. In order to establish the prevalence of house dust mites in different city districts, 100 house dust samples were collected from different parts of Lima. Lima is a city of tropical climate located along the coast of the Pacific Ocean. The relative air humidity is 80-90% and the various districts studied are located at altitudes ranging from 37-355 meters. The mite Blomia tropicalis was the organism most frequently detected, being present in 59% of the house dust samples. Dermatophagoides pteronyssinus occupied second place (15.9%), followed by Chortoglyphus arcuatus and Tyrophagus putrescentiae. These four mites, taken together, represented more than 90% of the mites detected. No specimen of the species Dermatophagoides farinae was detected. We conclude that B. tropicalis and D. pteronyssinus are the most common house dust mites in Lima. Considering the high prevalence of B. tropicalis in Lima and the fact that its cross-reactivity with antigens of the mites of the family Pyroglyphidae is minimal, we conclude that sensitization to this mite should be investigated separately in allergic patients living in Lima.

Animals↗
PubMed2000

View from Peru.

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PubMed1975

[First national seminar on the teaching of preventive medicine in the medical academic programs in Peru. Summary of the seminar report].

A summary report is presented of the Seminar held in Lima, in November-December 1974, attended by 44 delegates, including university professors, Peruvian Health Ministry officials, representatives of the Peruvian Association of Academic Prpgrams in Human Medicine, students, insturctors and PAHO/WHO advisers. The main topics were: concepts of preventive medicine in medical education, cirriculum structure, teaching methods, and educational resources. A comprehensive review of the course content in preventive medicine and how it is taught was made with the aim of instiuting uniform and criteria in this area of instruction. The recommendations reflect a thoroughgoing analysis of the subjects discussed and are a valuable contribution to improvement of the teaching of preventive medicine.

Curriculum↗