A case of neonatal meningitis due to Bacillus cereus is presented. Postmortem histopathologic examination revealed an invasive disease involving the brain parenchyma, with a cellular composition consistent with an indolent process indicative of possible perinatally acquired infection. One other neonate from our institution with systemic disease due to a nonanthrax bacillus is described, and a review of the English-language literature since 1900 reveals four additional neonates infected with these unusual pathogens. Such Bacillus species infections are rare but should be suspected when gram-positive bacilli are noted on gram stain, especially in an immunocompromised host.
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Patrick et al. (1989) studied this question.