Giardiasis: report of a case refractory to treatment.

Caused by the protozoan Giardia lamblia, giardiasis is one of the most common parasitic diarrheal infections affecting humans. Although a variety of antigiardial drugs are available to treat infections in humans, failure of conventional treatment with nitroimidazoles for giardiasis has been increasingly reported. We describe the follow-up of a patient with recurrent giardiasis refractory to nitroimidazoles.

[Skin test with aeroallergens untested in Mexico].

This study was carried out to prove that some molds even not studied in Mexico can be able to incit a positive skin test. We tested 43 adults (15-45 years old), 34 of them suffering respiratory allergy verified by roentgenography and laboratory tests including traditional intradermic allergic test. 9 subjects served as control group.