Evidence map›Paper›PMID 27308290›Full record

ArticleJournal of arthropod-borne diseases2016

Impact of Climate and Environmental Factors on West Nile Virus Circulation in Iran.

Farzaneh Ahmadnejad, Vahid Otarod, Amanollah Fathnia, Ali Ahmadabadi, Mohammad H Fallah, Alireza Zavareh, Nargess Miandehi, Benoit Durand, Philippe Sabatier

Abstract read
In one paragraph

Article in Journal of arthropod-borne diseases, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
–field-weighted citation impact
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

10 citing papers in PubMed.

  1. Article
  2. Review
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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

9 authors.

Farzaneh AhmadnejadViral Vaccines Production Department, Pasteur Institute, Tehran, Iran; TIMC-IMAG Team EPSP, VetAgroSup, Campus Vétérinaire de Lyon, France.
Vahid OtarodQuarantine and Biosafety Directorate General, Iran Veterinary Organization, Tehran, Iran.
Amanollah FathniaDepartment of Geography, Razi University, Kermanshah, Iran.
Ali AhmadabadiFaculty of Geography, Kharazmi University, Tehran, Iran.
Mohammad H FallahDepartment of Poultry Viral Diseases, Razi Vaccine and Serum Research Institute, Alborz, Iran.
Alireza ZavarehViral Vaccines Production Department, Pasteur Institute, Tehran, Iran.
Nargess MiandehiViral Vaccines Production Department, Pasteur Institute, Tehran, Iran.
Benoit DurandUniversity Paris Est, Anses, Laboratory of Animal Health, Epidemiology Unit, Maisons-Alfort, France.
Philippe SabatierTIMC-IMAG Team EPSP, VetAgroSup, Campus Vétérinaire de Lyon, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGeographic distribution of West Nile virus (WNV) is heterogeneous in Iran by a high circulation in the southern-western areas. The objective of our study was to determine environmental and climatic factors associated with the risk of WNV equine seropositivity in Iran.

methodsSerological data were obtained from a serosurvey conducted in equine population in 260 districts in Iran. The climate and environmental parameters included in the models were distance to the nearest wetland area, type of stable, Normalized Difference Vegetation Index (NDVI), annual mean temperature, humidity and precipitation.

resultsThe important risk factors included annual mean temperature, distance to wetlands, local and seasonal NDVI differences. The effect of local NDVI differences in spring was particularly notable. This was a normalized difference of average NDVI between two areas: a 5 km radius area centered on the stable and the 5-10 km surrounding area.

conclusionThe model indicated that local NDVI's contrast during spring is a major risk factor of the transmission of West-Nile virus in Iran. This so-called oasis effect consistent with the seasonal production of vegetation in spring, and is associated to the attractiveness of the local NDVI environment for WNV vectors and hosts.

Indexed as

ClimateEnvironmentNDVIWest Nile VirusWetland

Identifiers

PMID27308290
PMCPMC4906738

What OpenQuestion holds

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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.