. A text-book upon the pathogenic Bacteria and Protozoa for students of medicine and physicians. Bacteriology; Pathogenic bacteria; Protozoa. 53° Relapsing Fever Ornithodorus savignyi is chiefly a parasite of the camel and only occasionally bites man; Ornithodorus moubata is essentially a human pest. The eggs of these ticks hatch in eight to fourteen days. The larval stage which has six legs is spent in the eggs and the creature that emerges is usually a first nymphalinston, which has eight legs. After hatching it remains inactive for several days, then becomes very active and ready to suck bl
. A text-book upon the pathogenic Bacteria and Protozoa for students of medicine and physicians. Bacteriology; Pathogenic bacteria; Protozoa. 53° Relapsing Fever Ornithodorus savignyi is chiefly a parasite of the camel and only occasionally bites man; Ornithodorus moubata is essentially a human pest. The eggs of these ticks hatch in eight to fourteen days. The larval stage which has six legs is spent in the eggs and the creature that emerges is usually a first nymphalinston, which has eight legs. After hatching it remains inactive for several days, then becomes very active and ready to suck blood. As it grows it becomes voracious, distending itself with blood, then dropping off, hiding itself for a time, molting, then being ready to feed again. This continues for a number of months, the ticks molting four times before passing from the nymph to the adult stage. Ornithodorus moubata is a common inhabitant of the native African huts along the caravan routes. To avoid it and escape relapsing fever R. Koch in his African expedition camped near but not in the villages, and avoided the native houses. It lives in the cracks in the mud walls, in the thatch, in the mats and sometimes simply upon the ground where its small size and dull color make it diffi- cult to see. From these hiding places it crawls at night and like a bed-bug. 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 McFarland, Joseph, 1868-. Philadelphia and London, W. B. Saunders Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbacteri, bookyear1919
