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.
Anatomy of a Cigarette. Conventional Cigarette. Note: This virtual cigarette does not represent a particular brand but describes the structure of many of the most popular brands of cigarettes on the market. Tobacco. Only a portion of the tobacco inside a cigarette comes from the leaf of a tobacco plant. A significant amount of the shredded brown innards of most modern cigarettes is a paper product called reconstituted tobacco or homogenized sheet tobacco, which is made from a pulp of mashed tobacco stems and other parts of the tobacco leaf that would otherwise go to waste.