. A civic biology : presented in problems. Biology; Sanitation. 1 i 1. Showing how flies may spread disease by means of contaminating food. been laid at their door. In a recent experiment two young men from the Connecticut Agricultural Station found that a single fly might carry on its feet anywhere from 500 to 6, 000,000 bacteria, the average number being over 1,200,000. Not all of these germs are harmful, but they might easily include those of typhoid fever, tuberculosis, summer com- plaint, and possibly other diseases. A recent pamphlet published by the Merchants' Association in New York Ci
. A civic biology : presented in problems. Biology; Sanitation. 1 i 1. Showing how flies may spread disease by means of contaminating food. been laid at their door. In a recent experiment two young men from the Connecticut Agricultural Station found that a single fly might carry on its feet anywhere from 500 to 6, 000,000 bacteria, the average number being over 1,200,000. Not all of these germs are harmful, but they might easily include those of typhoid fever, tuberculosis, summer com- plaint, and possibly other diseases. A recent pamphlet published by the Merchants' Association in New York City shows that the rapid increase of flies during the summer months has a definite correlation with the increase in the number of cases of summer complaint. Observations in other cities seem to show the increase in number of typhoid cases in the early fall is due, in part at least, to the same cause. A terrible toll of dis- ease and death may be laid at the door of the typhoid fly. Recently the stable fly has been found to carry the dread disease known as infantile paralysis. Remedies. - Cleanliness which destroys the breeding- place of flies, the frequent re- moval and destruction of gar- bage, rubbish, and manure, covering of all food when not in use and especially the care- ful screening of windows and doors during the breeding 100 90 80 SO 40 20 1910 I 1911 .1912 SEPT. otc. There were 329 typhoid cases in Jackson- ville, Florida, in 1910, 158 in 1911, s7 in first 10 months of 1912. 80 to 85 per cent of outdoor toilets were made fly proof during winter of 1910. Account for the decivas-' in typhoid after the flies were kept out of the 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 W. (George William), 1873-1948. New York : American Book Company
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