allergic rhinitis is the most common cause of allergic diseases. the recent guidelines of allergic rhinitis and its impact on asthma (aria) group, classified it to intermittent (less than 4 days per week and for less than 4 weeks) and persistent (more than 4 days per week or lasting more than 4 weeks regardless of the number of days per week). the present study evaluates the patients with aria ...

objective: zinc deficiency is an important health problem in developing countries. the aim of this study was diagnosis of zinc deficiency among young female students of tehran university of medical sciences. materials and methods: this cross sectional study evaluated 420 medical and paramedical students of tehran university in 2005. all of them were female and in the first year of their educati...

After the introduction of vaccines against pertussis, there was a dramatic decrease of the disease, and the problem was considered to have been solved. But it was not. Recently, large outbreaks have occurred in the United States, in several European countries, and in Australia [1, 2]. It is evident that there are still many unresolved questions in pertussis, the first of which is that we do not...

The recent efforts to mount an R&D response public health emergencies of international concern have led the formation what we term a biochemical infrastructure vaccine development and production. In principle, this is expected not only curtail existing pandemics but also anticipate contain yet-to-emerge future threats. Critically, by nature its geographical distribution technical modularity, th...