ArticleJournal of virological methods2026
Detection and characterization of neonatal cytomegalovirus through nanopore sequencing using flongle flow cells: Pilot study in Philadelphia, Pennsylvania.
Article in Journal of virological methods, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundCytomegalovirus (CMV) remains a significant infection in neonates and its early detection can aid with further treatment (antiviral, audiology). However, current diagnostics do not provide genetic information.
objectiveWe explored the use of the portable and comprehensive sequencing method from Oxford Nanopore Technologies, utilizing low-cost Flongle flow cells to detect and perform sequence-level characterization of neonatal urine samples that tested positive for CMV by PCR. STUDY
designWe performed a pilot study based on a retrospective cohort study of neonates who were positive for CMV by PCR, who were admitted at two birth hospitals in Philadelphia, PA. We leveraged deep and long-read sequencing results to analyze the reads in two forms: by comparing them against a reference-based strain and by reconstructing the genome through de novo assembly with phylogenetic tree analysis.
resultsWe assayed seven clinical samples, including a positive and negative control sample, from newborns ranging from 23 weeks' gestation to term, with testing performed for microcephaly, hearing test results, small gestational age, and thrombocytopenia. Each sample showed multiple differences compared to the reference strain, and the phylogenetic tree analysis of the de novo assembly depicted the genetic diversity of the samples.
conclusionThis pilot study shows that nanopore sequencing with low-cost Flongle flow cells can detect and characterize CMV strains from clinical neonatal urine samples. This, coupled with current screening and diagnostic criteria, could further our genomic understanding of neonatal CMV, such as viral genome diversity, genotype-phenotype associations, and spread of strains.
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