Mycoflora of potential sanitary interest present in illicit heroin.

The injection of heroin mixtures poses difficult problems in some cases to both pathologist and toxicologist in evaluating the cause of death. Direct heroin toxicity, allergic or idiosyncratic reactions, and bacterial and mycotic infections are different complications that can be found in these cases. The mycotic profile (mycoflora) present in illicit heroin from street samples (sachets) has been studied. The profile was obtained after incubating the samples at pH5 in 2% and 3% agar-maltose media. Only two samples (nos. 24 and 26) yielded negative results. Twenty-seven taxa were isolated. Penicillium and Aspergillus were the genera most frequently found in the samples. Other genera, such as Cladosporium, Absidia, Rhizopus and Micelia sterilia were also detected. Most of the fungi isolated presented a high allergenic potential and were liable to result in allergic reactions connected with "drug deaths". All the fungi found were commonly present in our environment.