Skip to main content

Orenstein, Alexander Jeremiah


ORENSTEIN, ALEXANDER JEREMIAH (1879–1972), South African medical scientist. Of Jewish origin, Orenstein was one of the teams of experts who, under W.C. Gorgas, cleared the Panama Canal Zone of yellow fever and malaria (1905–12). His experience of tropical and subtropical diseases led to his appointment in 1913 in the health services of German East Africa. In 1914 he was taken to South Africa by a Rand mining company to help reduce the incidence of pneumonia and tuberculosis which were taking a heavy toll among miners in the goldfields. Over the years, spectacular results were achieved in reducing the death rate, especially among African mine workers. Orenstein was director of the pneumoconiosis research unit of the South African Council for Scientific and Industrial Research when he retired in 1959. He had an international reputation and often represented South Africa at world health and labor conferences. Orenstein was director-general of medical services in the South African defense forces in both world wars, with the rank of brigadier (later major-general).


A.P. Cartwright, Golden Age (1968); South Africa's Hall of Fame (1960).

[Louis Hotz]

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"Orenstein, Alexander Jeremiah." Encyclopaedia Judaica. . 19 Feb. 2019 <>.

"Orenstein, Alexander Jeremiah." Encyclopaedia Judaica. . (February 19, 2019).

"Orenstein, Alexander Jeremiah." Encyclopaedia Judaica. . Retrieved February 19, 2019 from

Learn more about citation styles

Citation styles gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, cannot guarantee each citation it generates. Therefore, it’s best to use citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

The Chicago Manual of Style

American Psychological Association

  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.