Story at-a-glance 1  +. Canine leptospirosis, or âlepto,â is an infection caused by at least four species (serovars) of Leptospira bacteria. 2  However, there are over 20 different serovars that are potentially infectious to dogs.3  Leptospirosis isnât a new disease â in fact, itâs ancient.tory at-a-glance 1  +. Canine leptospirosis, or âlepto,â is an infection caused by at least four species (serovars) of Leptospira bacteria. 2  However, there are over 20 different serovars that are potentially infectious to dogs.
Philip Morris, a London-based cigarette manufacturer, created a New York subsidiary in 1902 to sell several of its cigarette brands, including Marlboro. By 1924 they were advertising Marlboro as a woman's cigarette based on the slogan Mild As May.
The Natural American Spirit cigarette, marketed here as 100% ChemicalAdditive-Free Tobacco. American Spirit cigarettes contain 36 percent free-base nicotine, compared with 9.6 percent in a Marlboro, 2.7 percent in a Camel, and 6.2 percent in a Winston. ... American Spirit is one of them. Natural American Spirit cigarettes are manufactured by a Reynolds subsidiary,Santa Fe Natural Tobacco Company.