Military uniform fabric patches treated with permethrin were evaluated against natural and laboratory strains of human body lice, Pediculus humanus, L. Permethrin-treated fabric was toxic to body lice on contact and quickly affected feeding behavior and the likelihood of disease transmission, even when washed up to 20 times. The use of permethrin-treated clothing offers a new passive approach in human louse control not previously feasible. Military personnel wearing permethrin-treated uniforms, therefore, can expect significant and long-term protection from lice and louse-borne diseases in endemic areas.
It is a well known fact that Brazil today is the greatest producer of iron and steel in all of Latin America. It is less well known that this industry is one of the oldest in the nation. Any effort to trace the development of this iron-working industry from its earliest sources should take into consideration the contributions of the Jesuits. As early as 1554, Father José Anchieta informed his Jesuit superiors and the king of Portugal of the existence of iron ore deposits in the interior of the captaincy of São Vicente (later São Paulo). Even more important in this respect was a forge established by the Jesuit Mateus Nogueira which in 1556 was instrumental in the manufacture of fishhooks, knives, wedges, shovels and other such implements used in the support of his community. These are claimed to be the first implements made from iron in Brazil.
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