Evidence map›Paper›PMID 33518326›Full record

ArticlePoultry science2021

Seroprevalence and prevalence of Mycoplasma synoviae in laying hens and broiler breeders in Spain.

Verónica Cortés, Sandra Sevilla-Navarro, Cristina García, Ana Tudón, Clara Marín, Pablo Catalá-Gregori

Open access · goldAbstract read
In one paragraph

Article in Poultry science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.8field-weighted citation impact, top 28% 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

9 citing papers in PubMed, 17 citations in OpenAlex.

  1. Prevalence and Epidemiological Characteristics ofAnimals : an open access journal from MDPI · 2026
    Article
  2. Article
  3. Serological evidence and risk factors ofOpen veterinary journal · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Frontiers in microbiology · 2023
    Article
  9. Article
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

6 authors at 1 institution in 1 country.

Verónica CortésCentro de Calidad Avícola y Alimentación Animal de la Comunidad Valenciana (CECAV), Castellón, Spain. Electronic address: v.cortes@cecav.org.
Sandra Sevilla-NavarroCentro de Calidad Avícola y Alimentación Animal de la Comunidad Valenciana (CECAV), Castellón, Spain; Universidad Cardenal Herrera-CEU, CEU Universities, Valencia, Spain.
Cristina GarcíaCentro de Calidad Avícola y Alimentación Animal de la Comunidad Valenciana (CECAV), Castellón, Spain.
Ana TudónCentro de Calidad Avícola y Alimentación Animal de la Comunidad Valenciana (CECAV), Castellón, Spain.
Clara MarínUniversidad Cardenal Herrera-CEU, CEU Universities, Valencia, Spain.
Pablo Catalá-GregoriCentro de Calidad Avícola y Alimentación Animal de la Comunidad Valenciana (CECAV), Castellón, Spain; Universidad Cardenal Herrera-CEU, CEU Universities, Valencia, Spain.
Universidad Cardenal Herrera CEU · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mycoplasma species are worldwide recognized poultry pathogens, with Mycoplasma synoviae being the second most important species from the clinical point of view that causes considerable economic losses in the poultry industry. The aim of this study was to assess the seroprevalence, prevalence, and phylogenetic variants of M. synoviae present in layers and broiler breeders' farms of Gallus gallus species located in eastern Spain. Thus, 19 and 23 flocks of layers and broiler breeders, respectively, were analyzed at 3 different ages. To assess seroprevalence, sera samples were analyzed by ELISA. Tracheal swabs were tested by PCR to assess the prevalence. A M. synoviae seroprevalence of 95 and 74% was detected in layers and broiler breeders, respectively. Regarding age-wise analysis, the positive rates obtained seemed to be higher as the age of sampling increased. As per PCR results, a prevalence of 95% in layers and 35% in broiler breeders was obtained. The genetic analysis showed that the strains present in broilers breeders were vaccine strains (MS H strain). In contrast, 6 different field strains were detected in layer hens. In conclusion, this study carried out in eastern Spain showed a higher seroprevalence and prevalence of M. synoviae field strains in layer flocks regarding broiler breeders, highlighting the usefulness of monitoring flocks to control this poultry pathogen. Moreover, our findings suggest M. synoviae vaccination in broiler breeders could be an effective prevention strategy.

Indexed as

Mycoplasma InfectionsMycoplasma synoviaePoultry DiseasesAnimalsChickensFemalePhylogenyPrevalenceSeroepidemiologic StudiesSpainELISAMycoplasma synoviae,PCRprevalenceseroprevalence

Identifiers

PMID33518326
PMCPMC7936174
OpenAlexW3112949460

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.