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Abstract
One of the most common types of microbial pesticides used is Bacillus thuringiensis. Although generally considered safe, exposures to B. thuringiensis pesticide do occur where management by healthcare providers is sought. The objective of this investigation was to describe B. thuringiensis pesticide exposures reported to Texas poison centers. Cases were all B. thuringiensis pesticide exposures reported to Texas poison centers during 2000–2010. The distribution of cases was determined for various demographic and clinical factors. Of 115 total cases, 64% occurred during May–July. The rate per 1,000,000 population was 14.3 in central Texas and 4.4 in the rest of the state. Of the patients, 56% were of an age 20 years or older and 55% were male. The exposure routes were 57% by ingestion, 30% by dermal contact, and 11% by inhalation. The patient was managed on site in 93% of the exposures and only one exposure was judged to be potentially serious. B. thuringiensis pesticide exposures reported to Texas poison centers were more frequently reported from the central region of the state. The majority of exposures occurred during April–July, involved adults and males, occurred by ingestion or dermal route, were managed on site and did not result in serious outcomes.