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Appl Environ Microbiol. 1992 December; 58(12): 3984-3990

Presence of human immunodeficiency virus nucleic acids in wastewater and their detection by polymerase chain reaction.

Department of Biological Sciences, Oakland University, Rochester, Michigan 48309.

ABSTRACT

The human immunodeficiency virus type 1 (HIV-1) released by infected individuals or present in human and hospital wastes can potentially cause contamination problems. The presence of HIV-1 was investigated in 16 environmental samples, including raw wastewater, sludge, final effluent, soil, and pond water, collected from different locations. A method was developed to extract total nucleic acids in intact form directly from the raw samples or from the viral concentrates of the raw samples. The isolated nucleic acids were analyzed for the presence of HIV-1 by using in vitro amplification of the target sequences by the polymerase chain reaction (PCR) method. HIV-1-specific proviral DNA and viral RNA were detected in the extracted nucleic acids obtained from three wastewater samples by this method. The specificity of the PCR-amplified products was determined by Southern blot hybridization with an HIV-1-specific oligonucleotide probe, SK19. The isolated nucleic acids from wastewater samples were also screened for the presence of poliovirus type 1, representing a commonly found enteric virus, and simian immunodeficiency virus, representing, presumably, rare viruses. While poliovirus type 1 viral RNA was found in all of the wastewater samples, none of the samples yielded a simian immunodeficiency virus-specific product. No PCR-amplified product was yielded when wastewater samples were directly used for the detection of HIV-1 and poliovirus type 1. The wastewater constituents appeared to be inhibitory to the enzymes reverse transcriptase and DNA polymerase.(ABSTRACT TRUNCATED AT 250 WORDS)