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JAMA. 1951;147(7):684. doi:10.1001/jama.1951.03670240068023.
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Cortisone Produced from Tropical Plants in Mexico.  —Progesterone, testosterone, and other steroid hormones are synthesized in Mexico utilizing as source material wild tropical plants of the family Dioscoraceas, which are very abundant on the coast of the Gulf of Mexico.In July, 1951, after a two-year study, it was announced that synthesis of the hormone was at last accomplished without animal products. It is expected that the world supply of cortisone will be unlimited by the end of 1952 and that its cost will diminish as the production increases.

Kala-Azar in Mexico.  —Kala-azar is known to occur in Brazil, Argentina, and in Venezuela. The dog and some wild animals, such as the squirrel, constitute a natural reservoir, and an insect genus Phlebotomus, which lives in tropical and humid areas, is the vector. Although these conditions exist in some southern areas of Mexico, and although the disease was reported some years


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