Elsevier

Diseases of the Chest

Volume 29, Issue 6, June 1956, Pages 649-668
Diseases of the Chest

Geographic Variation in the Prevalence of Histoplasmin Sensitivity

https://doi.org/10.1378/chest.29.6.649Get rights and content

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Material and Methods

Material for the present paper is derived from results of histoplasmin skin tests and residence history data obtained from three sources: (1) 21,867 student nurses, of whom 20,698 were tested with histoplasmin between 1945 and 1949 in connection with a long-range study of tuberculosis among student nurses in 76 training schools located in 10 metropolitan areas in different parts of the country, (2) 49,102 students of both sexes, mainly college freshmen, in 34 schools tested between the years

SUMMARY

This paper reports the results of a detailed mapping of geographic variation in the prevalence of histoplasmin sensitivity throughout the United States. The material is based on histoplasmin skin tests of 68,452 young adults who were lifetime residents of single counties. The data on this group were drawn from observations on more than 150,000 persons x-rayed and skin tested with various antigens in three cooperative research programs directed by tuberculosis research workers in the Public

RESUMEN

Esta comunicación relata los resultados de una zonificación detallada de las variaciones geográficas que tiene la frecuencia de la sensibilidad a la histoplasmina en los Estados Unidos.

El material se basa en las reacciones cutáneas a la histoplasmina en 68,452 adultos jóvenes que han residido todo el tiempo en un solo condado. Los datos de este grupo fueron extraídos de la observación de más de 150.000 personas pasadas por rayos X y sujetas a reacciones cutáneas con varios antígenos por tres

RESUME

Cet article rapporte les résultats des variations géographiques de la fréquence de la sensibilité à l'histoplasmine aux Etats-Unis. Les constatations ont pour base les tests cutanés à l'histoplasmine de 68.452 jeunes adultes, qui résidèrent toute leur vie durant dans un seul état. Les constatations faites sur ce groupe furent tirées d'observations portant sur plus de 150.000 personnes vues radiologiquement, et ayant subi des tests cutanés avec différents antigènes, selon trois programmes de

ZUSAMMENFASSUNG

Diese Mitteilung berichtet über die Ergebnisse einer ins Einzelne gehenden Darstellung der geographischen Unterschiede hinsichtlich des Vorkommens der Histoplasmin-Empfindlichkeit im gesamten Gebiet der Vereinigten Staaten. Das Material geht aus von den Histoplasmin-Haut-Testen an 68.452 jüngeren Erwachsenen, die Zeit ihres Lebens Bewohner der einzelen Kreise waren. Die Zahlenangahen über diese Gruppe wurden aus Beobachtungen gewonnen an mehr als 1500.000 Personen mit Röntgenuntersuchungen und

ACKNOWLEDGEMENTS

The cooperation and assistance of the following persons and groups in the collection of this material is gratefully acknowledged:

Students and directors of nursing in the following schools of nursing:

Fresno, California: Fresno Hospital.

Los Angeles, California: California Hospital, Glendale Hospital, Good Samaritan Hospital, Huntington Memorial Hospital, Los Angeles County General Hospital, Methodist Hospital, Presbyterian Hospital, Queen of Angels Hospital, St. Joseph's Hospital, White Memorial

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