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  • Title: Pathogen chip for respiratory tract infections.
    Author: Simões EA, Patel C, Sung WK, Lee CW, Loh KH, Lucero M, Nohynek H, Nai G, Thien PL, Koh CW, Chan YS, Ma J, Maurer-Stroh S, Carosone-Link P, Hibberd ML, Wong CW, ARIVAC Consortium.
    Journal: J Clin Microbiol; 2013 Mar; 51(3):945-53. PubMed ID: 23303493.
    Abstract:
    Determining the viral etiology of respiratory tract infections (RTI) has been limited for the most part to specific primer PCR-based methods due to their increased sensitivity and specificity compared to other methods, such as tissue culture. However, specific primer approaches have limited the ability to fully understand the diversity of infecting pathogens. A pathogen chip system (PathChip), developed at the Genome Institute of Singapore (GIS), using a random-tagged PCR coupled to a chip with over 170,000 probes, has the potential to recognize all known human viral pathogens. We tested 290 nasal wash specimens from Filipino children <2 years of age with respiratory tract infections using culture and 3 PCR methods-EraGen, Luminex, and the GIS PathChip. The PathChip had good diagnostic accuracy, ranging from 85.9% (95% confidence interval [CI], 81.3 to 89.7%) for rhinovirus/enteroviruses to 98.6% (95% CI, 96.5 to 99.6%) for PIV 2, compared to the other methods and additionally identified a number of viruses not detected by these methods.
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