. Bacteriological methods in food and drugs laboratories : with an introduction to micro-analytical methods . Bacteriology; Food; Drugs. 112 BACTERIOLOGICAL METHODS The tubes must be fastened to suitable stands or supports to pre- vent, as much as possible, the mechanical mixing of the contents after the inoculations are made. It is perhaps self-evident that concentrates or high contaminations are to be inoculated into the tubes. The tubes should be large enough to hold at least 50 to 100 cc. of medium and suspected water in equal parts. 12. Possible Contamination of Food Substances with the C
. Bacteriological methods in food and drugs laboratories : with an introduction to micro-analytical methods . Bacteriology; Food; Drugs. 112 BACTERIOLOGICAL METHODS The tubes must be fastened to suitable stands or supports to pre- vent, as much as possible, the mechanical mixing of the contents after the inoculations are made. It is perhaps self-evident that concentrates or high contaminations are to be inoculated into the tubes. The tubes should be large enough to hold at least 50 to 100 cc. of medium and suspected water in equal parts. 12. Possible Contamination of Food Substances with the Cholera Bacillus In the United States the contamination of foods with the cholera vibrio is far less hkely than the contamination with the typhoid fever germ, yet it is a possibility to be reckoned Fig. 34.—Spirillum cholerm, from broth culture, stained with fuchsin (X looo).— {Stitt, after Kolle and Wassermann.) The cholera germ is found in the feces (but not in the urine) of patients and in the feces of carriers, in which regards it resembles the typhoid bacillus. It is less resistent than the typhoid organ- ism, disappearing rapidly from the stools, usually in 5 to 10 days. Under certain conditions (as in fresh water supplies) the infection may endure for longer periods, for several months and more. Like the typhoid germ, it shows some marked tend-. 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 Schneider, Albert, 1863-1928. Philadelphia : P. Blakiston's Son & Co.
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