Review of reviews and world's work . THE DISEASE-CARRYING HOCSE-FLY in DANIEL I). JACKSON (Bacteriologist for the Department of Water Supply, Gas, and Electricit) t theCit> of New York) \ [OSES musl have had some realization of-? * the danger from flies, for he witnessedtheir dreadful ravages among the Egyptians althe time of the t aptiv ity of the Israelites. Butprobably even before, and » ertainh many timessin. c. have thinking people suspected the malevolenceof this plague. It was not until venrecent years, however, thai spe< iiic evidenceha- been gathered which has convii ted the tlv
Review of reviews and world's work . THE DISEASE-CARRYING HOCSE-FLY in DANIEL I). JACKSON (Bacteriologist for the Department of Water Supply, Gas, and Electricit) t theCit> of New York) \ [OSES musl have had some realization of-? * the danger from flies, for he witnessedtheir dreadful ravages among the Egyptians althe time of the t aptiv ity of the Israelites. Butprobably even before, and » ertainh many timessin. c. have thinking people suspected the malevolenceof this plague. It was not until venrecent years, however, thai spe< iiic evidenceha- been gathered which has convii ted the tlvof gufll beyond a doubt, and only during hisre. 111! trial have the extent and enormity of his< rime- been established. The chief spe» iallie-of the tlv are now knownto he tin- transmission o\ intestinal diseases,typhoid fever, cholera, and diarrhea. It hasal-o been pointed out in recent studies b) Government Board of London thai hemav very possiblj carrj tuberculosis, anthrax,diphtheria, ophthalmia, smallpox, staphylo. THE DISEASE-CARRYING HOUSE-FLY 45 cus infection, swine fever, tropical sore, andthe eggs of parasitic worms. Hence the vigorous campaign now bein^carried on against the house-fly by civic asso-ciations and health hoards throughout thecountry. In many cities placards have beenposted warning the people in terse text andgraphic pictures of the danger from flies, andgiving rides for protection against them;lectures on the subject are also being widelygiven, and even that new popular fad, themoving-picture show, has been brought intoservice to educate the public to the dangersof the in used don:- is the house-fly is scientifically termed, or, as Dr. L. (.). named it, the typhoid fly. Overer cent, of the flies that visit our bonusand surroundings belong to this rous .IONS Ol M\ ON \ SING1 E FLY The form and character of the flys body is particularly adapted for carrying the infec- material, and as it breeds in fecal matter almo-t exclusively and
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