Some personal observations made in Pennsylvania and in Texas regarding malarial fever and the anopheles mosquito / by Albert Woldert, M.D., of Tyler, Texas.

  • Woldert, Albert, 1867-1959
Date:
[1906?]
Catalogue details

Licence: In copyright

Credit: Some personal observations made in Pennsylvania and in Texas regarding malarial fever and the anopheles mosquito / by Albert Woldert, M.D., of Tyler, Texas. Source: Wellcome Collection.

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    March 24, 1906.] SOME PERSONAL OBSERVATIONS MADE IN PE SYLVANIA AND IN TEXAS REGARDING MALA¬ RIAL FEVER AND THE ANOPHELES MOSQUITO * BY ALBERT WOLDERT, M.D., of Tyler, Texas. Malarial fever is an acute, infectious, inoculable dis¬ ease, sporadic, epidemic, and endemic. It may occur dur¬ ing all seasons of the year. It is due to one cause only— the plasmodium of malaria. As all know, this micro¬ organism was discovered by Dr. Alphonse Laveran in November, 1880. At that time he was in the French military service, working in Constantine, Algeria, but is now teaching in the medical school at Val de Grace, near Paris, France. The malarial parasite is an animal organism belong¬ ing to the natural order Gymnosporidia, class sporozoa, and is divided into different species, namely, hemameba malaria (quartan), hemameba vivax (tertian), and hsem- omenas pr^ecox (Doss), or, according to others, Lnverania •'* malarias, causing the pernicious or remittent forms of fever, such as the estivoautumnal fever. Malarial parasites may contain either male or female elements. The life-history of this animal parasite is an intricate process, subject to many difficulties which hinder the perpetuation of its species. So well does it guard its own means of self-preserva¬ tion that it has chosen two hosts in which to complete its life cycle, which is to grow, to sporulate, and to propagate its offspring. In this respect its mode of *Aa address (by invitation) made before the McLennan County Medical Society and Business Men’s Club, Waco, Texas, September 12, 1905.