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Epidemiology Work (III)

In these people, the disease appears to have originated in the soot that is inserted into the folds of the scrotum, in principle, there seems to be a disease of (...) sex in this case the people are young and your health is good, at least initially, the disease will ensue for their profession and in all probability, by local causes, the latter circumstance may be assumed by the that always affect the same area. All this makes it (in principle) a very different case of cancer that occurs in an elderly man.

This first description was made of an occupational cancer remains a model of lucidity. Clearly define the nature of the illness, the profession of the patients and the likely etiologic agent. Indicated a higher incidence of cancer scrotum in chimney sweeps, although no quantitative data were provided to substantiate this claim.

Fifty years later, Ayrton Paris noted in 1822 (Ayrton-Paris 1822) A high frequency of scrotal cancer in copper smelters and tin from Cornwall and assumed that the smoke of arsenic could be the causative agent. Von Volkmann in 1874 published a report on skin tumors in workers exposed to paraffin in Saxony, and soon after, in

1876, Bell suggested that the shale oil produced skin cancer (Von Volkmann 1874, Bell 1876) . Since then, reports the occupational cancer were more frequent (Clayson 1962).

One of the first diseases described was lung cancer in miners of Schneeberg (Harting and Hesse 1879). A recent case study has shown that the epidemic of Schneeberg lung cancer remains a serious public health problem more than a century after it was first observed in 1879. In the history of medi-ce of work may be some attempts to identi-fying a "surge" in sickness and even quantify. For example, as noted by Axelson (1994), WA Guy studied in 1843 the "pulmonary consumption" workers in the printing and observed an increased risk in the printers that the pressmen, for it used a design similar to studies of cases and controls (Lilienfeld and Lilienfeld 1979). However, until the early 1950 there began to develop modern epidemiology and methodology. The main contributors to this development were the studies of bladder cancer in workers exposed to dyes (Case and Hosken 1954) and lung cancer in workers exposed to gases (Doll 1952).