[Epidemiology of smoking in the Wilaya population of Algeria].

A questionnaire survey was done in 1985 to determine the smoking habits of a representative sample of men and women in the Wilaya of Algiers. Among the men 77.1% used tobacco: 48.

[Hydatid cyst of the lung].

Following a summary of the natural biological cycle of Taenia echinococcus granulosus, the hydatid vesicle is described with its walls and contents. The chapter on the geographical distribution and epidemiology of hydatidosis shows that the disease is ubiquitous, spares no continent and is particularly frequent in Mediterranean countries and Latin America. The natural course of the pulmonary hydatid cyst is presented in 6 successive radioclinical stages and illustrated by radiological images that are most characteristic of each of these stages.

The consequences of Robert Koch's Discovery for countries with a high prevalence of tuberculosis.

Since the issue of the 8th report of the WHO Expert Committee on Tuberculosis in 1964, the importance of Robert Koch's discovery has become fully apparent, becoming the basis of the development of the National Tuberculosis Control Programme. Robert Koch's discovery has had three main consequences for high prevalence countries. 1.

[Absorption and urinary elimination of pyrazinamid administered alone or in combination with isoniazid and rifampicin].

The aim of this work to study the PZA absorption in man its urinary excretion. The PZA was administered alone and in association with INH or/and Rifampicin. The PZA dosage in blood and urine and pyrazinoic acid in urine were performed in a sample of 80 patients divided into 4 groups.

[Is there sarcoidosis in countries with a high prevalence of tuberculosis? (author's transl)].

A review is given of the literature concerned with the relatively rare occurence of sarcoidosis in countries with a high prevalence of tuberculosis and informations on clinical status, diagnostic, stage distribution and evaluation of 28 personally observed patients presented. The possible reasons of the only recently more frequent detection of sarcoidosis are discussed. Easily realisable measures as screening (test of tuberculine) for earlier detection are recommended.