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Barbara W. Johnson

Researcher at Centers for Disease Control and Prevention

Publications -  41
Citations -  1644

Barbara W. Johnson is an academic researcher from Centers for Disease Control and Prevention. The author has contributed to research in topics: Virus & Japanese encephalitis. The author has an hindex of 22, co-authored 40 publications receiving 1457 citations.

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Serotype-Specific Detection of Dengue Viruses in a Fourplex Real-Time Reverse Transcriptase PCR Assay

TL;DR: This serotype-specific, fourplex real-time reverse transcriptase PCR nucleic acid detection assay can be used as a method for differential diagnosis of a specific DEN serotype in viremic dengue patients and as a tool for rapid identification and serotyping of DEN virus isolates.
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Laboratory Diagnosis of Chikungunya Virus Infections and Commercial Sources for Diagnostic Assays.

TL;DR: Nine commercial CHIKV IgM detection assays were evaluated at 3 reference laboratories to provide guidance to public health diagnostic laboratories on their performance parameters and showed comparable performance to reference assays.
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Culex Flavivirus Isolates from Mosquitoes in Guatemala

TL;DR: Nucleotide sequence comparison of the eight flavivirus RNA-positive pools showed that there was 100% identity among them, and phylogenetic analysis of the NS5 and envelope gene regions indicated that they represent a strain of the recently described CxFV from Japan.
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Acute Arboviral Infections in Guinea, West Africa, 2006

TL;DR: It is strongly suggested that arboviruses circulate and are common causes of disease in Guinea and improving surveillance and laboratory capacity forArbovirus diagnoses will be integral to understanding the burden posed by these agents in the region.