Word: bacillus
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California's elaborate machinery for confirming a case of bubonic plague began to grind. The plague bacillus lives in fleas, which in turn infest Western ground rodents. When an epizootic occurs, the disease kills many of the rodents. In Lockwood Valley, disease detectives found the shriveled carcasses of rabbits and ground squirrels by the score. More significant, they found fleas on the ground because their animal hosts had died...
...cause of ileitis is unknown (even the tubercle bacillus was once indicted, now dysentery bacteria are suspected), and the disease is probably commoner than was believed until recently, because it is difficult to diagnose. Emotional disturbances are often prominent features: anxiety, tension and irritability. One authority recommends lowering emotional tension by "leaves of absence from college or business, or by the solution of marital problems...
...patients who also had tuberculosis and 141 in those free of TB. There has been a startlingly rapid increase in numbers of cases from 1954 to 1955. From Georgia's Battey State Hospital, Dr. Horace E. Crow reported discovery of a similar (perhaps the same) mystery bacillus in 69 patients...
...Made from an organism found in voles (British field mice). This bacillus (Mycobacterium muris) is a close kin to the human-type tubercle bacillus, but does not cause disease in man. The question before this test was whether it could confer immunity against TB (as cowpox does against smallpox...
...There were no deaths from TB, but 165 cases cropped up. Of these. 64 were in the negative-unvaccinated group, for an annual rate of 1.94 cases per 1,000; 13 were in the BCG group, a rate of .37 per 1,000, and seven were in the vole bacillus group, for a rate of .44. Of particular importance: not one of the TB cases in the vaccinated groups was of the especially dangerous meningeal (brain covering) or miliary (throughout the body) variety. There were 81 cases among children with positive tuberculin reactions - a significantly higher rate than among...