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Contaminated street heroin. Relationship to clinical infections
Abstract:
Thirty-one samples of street heroin were analyzed bacteriologically and chemically as to their microbial burden and chemical adulterants (fillers). Sixty-one percent of the samples were positive for microbial growth. Many species were isolated from the positive samples with Bacillus sp (79%) and Aspergillus sp (10%) predominating. The level of contamination ranged from 1.6 X 10(2) to 3.7 X 10(4) organisms per gram. We obtained cultures from 16 addicts from the Chicago area and 21 from the New Orleans area who had soft-tissue infections related to their habit. Infections in this group of patients were usually polymicrobial; however, there was no correlation between the organisms recovered from street heroin and the addicts' infections. Most drug-related infections appear to be related to the addicts' own oral and dermal microflora. No correlation was observed between the chemical fillers and the bacteria recovered from the heroin.
Insights
Street heroin samples showed significant microbial contamination, with Bacillus and Aspergillus species being common. However, the microbes found in heroin did not correlate with infections in drug users, suggesting infections stem from the users' own microflora.
Area of Science:
- Microbiology
- Public Health
- Forensic Science
Background:
- Intravenous drug use is associated with various infections.
- Street heroin is often adulterated with fillers and may harbor microbial contaminants.
- Understanding the microbial profile of street heroin and its relation to user infections is crucial for public health interventions.
Purpose of the Study:
- To determine the microbial burden and chemical adulterants in street heroin samples.
- To investigate the correlation between microbes found in street heroin and soft-tissue infections in drug users.
- To identify the sources of microbial contamination in drug-related infections.
Main Methods:
- Bacteriological and chemical analysis of 31 street heroin samples.
- Isolation and identification of microbial species from positive samples.
- Collection of cultures from drug users with soft-tissue infections for comparison.
Main Results:
- 61% of heroin samples exhibited microbial growth, with Bacillus sp. (79%) and Aspergillus sp. (10%) predominating.
- Contamination levels ranged from 1.6 x 10^2 to 3.7 x 10^4 organisms per gram.
- No correlation was found between the microorganisms in heroin and those causing infections in addicts; infections were polymicrobial and likely originated from the users' microflora.
Conclusions:
- Street heroin is frequently contaminated with diverse microorganisms.
- The microbial contaminants in street heroin are not the primary cause of soft-tissue infections in users.
- Drug-related infections are predominantly linked to the endogenous microflora of the drug users.