benign paroxysmal positional vertigo (bppv) is a condition that indicates a benign inner ear disorder. it is generally believed that bppv is due to the dislodged otoconial particles from otolith organs and unusual collection of them within any of semicircular canals or even in all three semicircular canals. although the typical features of nystagmus in bppv have been well-studied, very few stud...

This study defined a wealth index that was strongly correlated with a health indicator: the survival of children aged less than five years. This index allowed the most vulnerable social groups for health outcomes to be identified. These groups could become the target for focused interventions and in particular for health-insurance schemes. The study was based on a thorough analysis of data coll...

from a total of 600 nose and throat introduction swabs examined for diphtherie, 200 or 33% were positive. cultures were carfully classified on the basis of morphological appearance and biochemical characteristics into gravis, mitis and intermedius groups.  a special tellurite serum agar was used for colonial appearance. neill's broth culture was employed for haemolytic tests. the virulence of e...