Ramon Ra·mon (rä-môɴ'), Gaston Léon. 1886-1963.
French bacteriologist who in 1936 discovered a method of producing toxoids, leading to the development of vaccinations against diphtheria and tetanus.
prolific trees closely related to the breadfruit and found widely in second-growth Central American tropical rainforests, where its presence in deep forest is considered evidence of pre-Colombian Mayan silviculture. The tree has since been cultivated in many tropical countries.
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