. Essentials of biology presented in problems. Biology. HEALTH AND DISEASE 429 we consider the specific case of the disease known as smallpox. In the eighteenth century 5,000,000 people are said to have died from it; one hundred years ago it was exceedingly common in all large cities in this country. To-day an epidemic of smallpox is impos- sible, thanks to the discovery of vaccination and prompt action by the health department. Tuberculosis at the present time kills more people annually than any other disease, and yet it is believed by sanitary hving we will stamp out the disease within fifty
. Essentials of biology presented in problems. Biology. HEALTH AND DISEASE 429 we consider the specific case of the disease known as smallpox. In the eighteenth century 5,000,000 people are said to have died from it; one hundred years ago it was exceedingly common in all large cities in this country. To-day an epidemic of smallpox is impos- sible, thanks to the discovery of vaccination and prompt action by the health department. Tuberculosis at the present time kills more people annually than any other disease, and yet it is believed by sanitary hving we will stamp out the disease within fifty years if. Deaths from tuberculosis contrasted with the other contagious diseases in the center of New York in 1908. we go on at the present rate. Public hygiene is largely responsible for the lessening of deaths from typhoid fever and other diseases which are transmitted through the milk or water supply. It is estimated that piu-e milk, pure water, and pure air supplied to all would lengthen the average human hfe in the United States eight years. At the present rate human life is being lengthened about 14 years every century in Massachusetts, 17 in Europe, and 27 per century in Prussia.' In India, on the other hand, where little hygiene is kno\vn or practiced among the masses of people, the length of life is stationary. ' This result ia obtained by the saving of the lives of thousands of young children, who now grow to become Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hunter, George William, 1873-1948. New York, Cincinnati [etc. ] American Book Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbiology, bookyear1911
