New Method for Diagnosing Fatal Dengue Cases Using NS1 Antigen Capture
Author Information
Author(s): Lima Monique da Rocha Queiroz, Nogueira Rita Maria Ribeiro, Schatzmayr Hermann Gonçalves, de Filippis Ana Maria Bispo, Limonta Daniel, dos Santos Flavia Barreto
Primary Institution: Flavivirus Laboratory, Oswaldo Cruz Institute, Rio de Janeiro, Brazil
Hypothesis
Can NS1 antigen capture tests effectively detect DENV in tissue specimens from fatal dengue cases?
Conclusion
The NS1 antigen capture assay is a rapid and effective method for confirming dengue in postmortem tissues.
Supporting Evidence
- The NS1 Ag Strip showed the highest sensitivity at 91.3% for detecting dengue in tissues.
- Overall, 87.0% of fatal cases had at least one positive tissue sample using NS1 tests.
- The study demonstrated NS1 presence in various tissues, including liver and brain, which had not been reported before.
Takeaway
This study found a new way to test for dengue in tissues from people who died from the disease, which can help doctors understand and track the virus better.
Methodology
The study analyzed 74 tissue specimens from 23 fatal dengue cases using three NS1 antigen capture tests.
Potential Biases
Potential bias due to the limited number of control tissues tested.
Limitations
The study was retrospective and relied on previously collected tissue samples.
Participant Demographics
23 fatal cases, 11 males and 12 females, aged 20-64 years.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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