Cases reported "Bacillaceae Infections"

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1/2. Significant infections due to Bacillus species following abrasions associated with motor vehicle-related trauma.

    Non-anthracis Bacillus species are ubiquitous gram-positive spore-forming organisms that were once believed to be nonpathogenic but are now recognized as causing a variety of infections. We report a new aspect of trauma associated with bacillus infection: clinically significant infection by Bacillus species in patients who are involved in motor vehicle accidents and sustain injury related to road contact. Cases were evaluated retrospectively from May 1990 through December 1991. Four patients who had documented infections with Bacillus species and who were involved in motor vehicle accidents associated with road trauma were identified during this period. The antibiotic susceptibility profile of the Bacillus species consistently demonstrated resistance to beta-lactam antibiotics. This series of cases illustrates an additional aspect of disease associated with bacteria of the Bacillus species that should be considered for patients who have sustained injuries from motor vehicle accidents associated with road trauma.
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2/2. Fatal bacillus cereus meningoencephalitis in an adult with acute myelogenous leukemia.

    bacillus cereus, a ubiquitous, endospore-forming, aerobic gram-positive bacillus, is primarily associated with toxin-mediated food poisoning. Frequently, isolates of Bacillus species from clinical specimens are discussed as contaminants. We report a rapidly fatal case of disseminated infection due to B cereus in a patient receiving induction chemotherapy for M0 acute leukemia. A short clinical syndrome of nausea and vomiting preceded neurologic symptoms. autopsy showed extensive meningoencephalitis with subarachnoid hemorrhage and multiple liver abscesses. Areas of necrosis were devoid of any inflammatory response consistent with a severely immunocompromised state. The organism was isolated from immediate premortem and autopsy blood specimens. This case illustrates the possibility and severity of true B cereus infections in immunocompromised patients, the clinicopathologic features of which are as yet not well defined.
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keywords = bacillus
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