Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2009-3-23
pubmed:abstractText
Diagnosing dengue in febrile patients is challenging. Of a total of 459 patients with acute undifferentiated fever, randomly selected from 12 primary health facilities and 1 clinic of the provincial malaria station in southern Vietnam, dengue-specific antibody (Ab) and NS1Ag enzyme-linked immunosorbent assay (ELISA) (Platelia, Bio-Rad Laboratories, Hercules, CA 94547, US) were performed on acute (t0) and convalescent (t3 weeks) sera. Polymerase chain reaction (PCR) was used for confirmation. Based on a composite of the NS1Ag-ELISA, Ab-ELISA, and PCR results, 54 (12%) patients had acute dengue. Positive and negative predictive values were 65% and 98% for the Ab-based diagnosis and 91% and 92% for NS1Ag, respectively. The agreement between Ab- and NS1Ag-based diagnosis was poor (kappa value, 0.2). Two patients without dengue had detectable NS1Ag on t0 and t3, 1 just above the cutoff value and 1 with very high values. For 5 dengue patients, NS1Ag was still detectable at very high levels at t3. Dengue NS1Ag can be used for early diagnosis of dengue; infrequent false-positive results need further clarification.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1879-0070
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
63
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
372-8
pubmed:meshHeading
pubmed-meshheading:19232866-Adolescent, pubmed-meshheading:19232866-Adult, pubmed-meshheading:19232866-Antibodies, Viral, pubmed-meshheading:19232866-Child, pubmed-meshheading:19232866-Dengue, pubmed-meshheading:19232866-Dengue Virus, pubmed-meshheading:19232866-Enzyme-Linked Immunosorbent Assay, pubmed-meshheading:19232866-Female, pubmed-meshheading:19232866-Fever of Unknown Origin, pubmed-meshheading:19232866-Humans, pubmed-meshheading:19232866-Male, pubmed-meshheading:19232866-Predictive Value of Tests, pubmed-meshheading:19232866-RNA, Viral, pubmed-meshheading:19232866-Reverse Transcriptase Polymerase Chain Reaction, pubmed-meshheading:19232866-Statistics as Topic, pubmed-meshheading:19232866-Vietnam, pubmed-meshheading:19232866-Viral Nonstructural Proteins, pubmed-meshheading:19232866-Young Adult
pubmed:year
2009
pubmed:articleTitle
Detection of dengue nonstructural 1 (NS1) protein in Vietnamese patients with fever.
pubmed:affiliation
Division of Infectious Diseases, Tropical Medicine and AIDS, Academic Medical Center, Amsterdam, The Netherlands.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't