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Chlamydia gallinacea in Brazilian backyard chicken farms.

Authors :
Ospina-Pinto MC
Alves BF
Soares HS
Jesus Pena HF
Raso TF
Source :
Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] [Braz J Microbiol] 2024 Jun; Vol. 55 (2), pp. 2005-2011. Date of Electronic Publication: 2024 Apr 04.
Publication Year :
2024

Abstract

Avian chlamydiosis is a bacterial infectious disease of birds, considered until recently caused only by Chlamydia psittaci, that now includes the newly described species C. buteonis, C. avium, and C. gallinacea, associated with several avian hosts. Since its recognition as a species in 2014 and having chickens as one of its main hosts, C. gallinacea has already been described in backyard poultry on all continents. The present study aimed to survey by molecular techniques the presence and species of Chlamydia spp. in backyard chickens from three states of the southern region of Brazil (Paraná-PR, Santa Catarina-SC, and Rio Grande do Sul-RS). DNA extracted from cloacal swab samples were tested by polymerase chain reaction (PCR) for different species of Chlamydia, namely Chlamydiaceae (23 S rRNA gene), C. psittaci (ompA gene), C. avium (enoA gene) and C. gallinacea (gidA and enoA genes). The 16 S rRNA gene was used for sequencing and phylogenetic analysis. A total of 582 backyard chicken samples were collected and grouped in 238 pools, from 134 properties in 59 municipalities. Chlamydiaceae was detected in 25.2% (60/238) of the samples, in 38.8% (52/134) of the properties and in 66.1% (39/59) of the municipalities. None of the samples yielded positive PCR results for C. psittaci or C. avium. For C. gallinacea, the overall percentage was 16.3% (39/238) according to the results of gidA and enoA genes. Sequence analysis confirmed that the samples corresponded to C. gallinacea. This is the first report of C. gallinacea in Brazil.<br /> (© 2024. The Author(s) under exclusive licence to Sociedade Brasileira de Microbiologia.)

Details

Language :
English
ISSN :
1678-4405
Volume :
55
Issue :
2
Database :
MEDLINE
Journal :
Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]
Publication Type :
Academic Journal
Accession number :
38573540
Full Text :
https://doi.org/10.1007/s42770-024-01319-9