Evidence map›Paper›PMID 36162442›Full record

ArticleThe American journal of tropical medicine and hygiene2022

Etiologies of Acute Undifferentiated Febrile Illnesses in and near Iquitos from 1993 to 1999 in the Amazon River Basin of Peru.

Douglas M Watts, Kevin L Russell, Mark T Wooster, Trueman W Sharp, Amy C Morrison, Tad J Kochel, Christian T Bautista, Karla Block, Carolina Guevara, Patricia Aguilar and 11 more

Open access · hybridAbstract read
In one paragraph

Article in The American journal of tropical medicine and hygiene, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 4 pooled it
5.2field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 4 syntheses or guidelines pooled it, 28 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  4. Pooled it
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Venezuelan Equine Encephalitis, Peruvian Amazon, 2020.Emerging infectious diseases · 2025
    Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Bacteriological and Serological Investigation of Leptospirosis in Dogs and Pigs in Palau.The American journal of tropical medicine and hygiene · 2024
    Article
  18. Article
  19. Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

21 authors at 6 institutions in 2 countries.

Douglas M WattsU.S. Naval Medical Research Unit No. 6, Lima, Peru.
Kevin L RussellU.S. Naval Medical Research Unit No. 6, Lima, Peru.
Mark T WoosterU.S. Naval Medical Research Unit No. 6, Lima, Peru.
Trueman W SharpU.S. Naval Medical Research Unit No. 6, Lima, Peru.
Amy C MorrisonUniversity of California, Davis School of Veterinary Medicine Department of Pathology, Microbiology, and Immunology, Davis, California.
Tad J KochelU.S. Naval Medical Research Unit No. 6, Lima, Peru.
Christian T BautistaU.S. Naval Medical Research Unit No. 6, Lima, Peru.
Karla BlockU.S. Naval Medical Research Unit No. 6, Lima, Peru.
Carolina GuevaraU.S. Naval Medical Research Unit No. 6, Lima, Peru.
Patricia AguilarWorld Reference Center for Emerging Viruses and Arboviruses University of Texas Medical Branch, Galveston, Texas.
Pedro M PalermoU.S. Naval Medical Research Unit No. 6, Lima, Peru.
Carlos CalampaPeruvian Ministry of Health, Loreto Health Subregion, Iquitos, Peru.
Kevin R PorterU.S. Naval Medical Research Center, Silver Spring, Maryland.
Curtis G HayesU.S. Naval Medical Research Center, Silver Spring, Maryland.
Scott C WeaverWorld Reference Center for Emerging Viruses and Arboviruses University of Texas Medical Branch, Galveston, Texas.
Amelia Travassos de RosaWorld Reference Center for Emerging Viruses and Arboviruses University of Texas Medical Branch, Galveston, Texas.
Joseph M VinetzWorld Reference Center for Emerging Viruses and Arboviruses University of Texas Medical Branch, Galveston, Texas.
Robert E ShopeWorld Reference Center for Emerging Viruses and Arboviruses University of Texas Medical Branch, Galveston, Texas.
Eduardo GotuzzoDepartment of Medicine, Universidad Peruana Cayetano Heredia, Lima, Peru.
Hilda GuzmanWorld Reference Center for Emerging Viruses and Arboviruses University of Texas Medical Branch, Galveston, Texas.
Robert B TeshWorld Reference Center for Emerging Viruses and Arboviruses University of Texas Medical Branch, Galveston, Texas.
United States Naval Medical Research Unit SOUTH · PEThe University of Texas Medical Branch at Galveston · USNaval Medical Research Command · USMinistry of Health · PEUniversidad Peruana Cayetano Heredia · PEUniversity of California, Davis · US

Funding

World Reference Center for Emerging Viruses and Arboviruses (WRCEVA)R24AI120942 · NIAID · UNIVERSITY OF TEXAS MED BR GALVESTON · PI WEAVER, SCOTT C · 2016 to 2024
$8.5M
NIAID NIH HHS R24 AI120942
6 · The paper itself

Abstract

The objective of this study was to determine the etiology of febrile illnesses among patients from October 1, 1993 through September 30, 1999, in the urban community of Iquitos in the Amazon River Basin of Peru. Epidemiological and clinical data as well as blood samples were obtained from consenting patients at hospitals, health clinics and private residences. Samples were tested for arboviruses in cell cultures and for IgM and IgG antibodies by ELISA. Blood smears were examined for malaria, and sera were tested for antibodies to Leptospira spp. by ELISA and microscopic agglutination. Among 6,607 febrile patients studied, dengue viruses caused 14.6% of the cases, and Venezuelan equine encephalitis virus caused 2.5%, Oropouche virus 1.0%, Mayaro virus 0.4%, and other arboviruses caused 0.2% of the cases. Also, 22.9% of 4,844 patients tested were positive for malaria, and of 400 samples tested, 9% had evidence of acute leptospirosis. Although the study was not designed to assess the importance of these pathogens as a cause of human morbidity in the total population, these results indicate that arboviruses, leptospirosis, and malaria were the cause of approximately 50% of the febrile cases. Although the arboviruses that were diagnosed can produce asymptomatic infections, our findings increased the overall understanding of the relative health burden of these infections, as well as baseline knowledge needed for designing and implementing further studies to better assess the health impact and threat of these pathogens in the Amazon Basin of Peru.

Indexed as

ArbovirusesEncephalitis Virus, Venezuelan EquineLeptospirosisMalariaFeverHumansPeruRivers

Identifiers

PMID36162442
PMCPMC9709010
OpenAlexW4297239390

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.