Molecular detection of Coxiella burnetii in aborted bovine fetuses in Brazil.

Acta Trop

Faculdade de Medicina Veterinária e Zootecnia, Departamento de Higiene Veterinária e Saúde Pública, Universidade Estadual Paulista "Júlio de Mesquita Filho", Botucatu, São Paulo 18618-970, Brazil. Electronic address:

Published: March 2022

In the past decade, cases of Q fever have been reported in Brazil. Although the previous report of Coxiella burnetii in humans and animals, the knowledge about the occurrence of this pathogen in livestock in Brazil is scarce. This study aimed to search C. burnetii and possible coinfections in tissues of aborted bovine fetuses from Brazil. Tissue samples from seventy-six aborted bovine fetuses sent to the laboratory of molecular diagnosis of infectious diseases from 2013 to 2019 were evaluated by real-time PCR for C. burnetii. Overall, 9.2% (7/76) of the samples were positive for C. burnetii. Moreover, the molecular diagnostic history of our lab revealed the coinfection with Neospora spp. in three fetuses and the presence of histopathological features suggestive with fetal neosporosis in another one. The previous report of C. burnetii in humans and animals in the country, with the detection of C. burnetii from tissues of aborted bovine fetuses reported here, reinforces the neglected state of the disease in Brazil and raises the question of the role of the pathogen in reproductive disorders in national livestock.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.actatropica.2021.106258DOI Listing

Publication Analysis

Top Keywords

aborted bovine
16
bovine fetuses
16
coxiella burnetii
8
fetuses brazil
8
previous report
8
burnetii humans
8
humans animals
8
tissues aborted
8
burnetii
7
fetuses
5

Similar Publications

Outbreak of subsp. Serovar Napoli on a Dairy Cow Farm.

Animals (Basel)

January 2025

Experimental Zooprophylactic Institute of Lombardy and Emilia Romagna (IZSLER), "Bruno Ubertini", Diagnostic Section of Piacenza, Italy Via Strada Della Faggiola 1, 29027 Podenzano, PC, Italy.

is diffused worldwide, and subsp. is spread worldwide with many serovars associated with the infection of domestic bovines. The most spread are .

View Article and Find Full Text PDF

First Report of Influenza D Virus in Dairy Cattle in Pakistan.

Viruses

November 2024

Department of Environmental and Global Health College of Public Health and Health Professions, University of Florida, Gainesville, FL 32610, USA.

Influenza D virus (IDV) is a newly emerged zoonotic virus increasingly reported worldwide. Cattle are considered the main reservoir of IDV, although it was first isolated from pigs. IDV infects multiple animal species and contributes to the bovine respiratory disease complex (BRDC).

View Article and Find Full Text PDF

Molecular Testing of Zoonotic Bacteria in Cattle, Sheep, and Goat Abortion Cases in Botswana.

Microorganisms

December 2024

Animal Production and Health Laboratory, Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Wagramer Strasse 5, P.O. Box 100, 1400 Vienna, Austria.

Abortion is one of the major causes of economic losses in livestock production worldwide. Because several factors can lead to abortion in cattle, sheep and goats, laboratory diagnosis, including the molecular detection of pathogens causing abortion, is often necessary. Bacterial zoonotic diseases such as brucellosis, coxiellosis, leptospirosis, and listeriosis have been implicated in livestock abortion, but they are under diagnosed and under-reported in most developing countries, including Botswana.

View Article and Find Full Text PDF
Article Synopsis
  • - The dairy industry needs efficient reproduction for successful milk production, with spontaneous abortion (SA) affecting different rates between heifers bred by artificial insemination (4.5%) and those receiving embryo transfer (31.6%).
  • - A genome-wide association analysis (GWAA) identified 216 loci and 413 candidate genes linked to SA in artificially inseminated Holstein heifers, while no significant loci were found for embryo transfer recipients.
  • - The discovered genetic loci related to SA in AI heifers can potentially aid in decreasing fetal loss through genomic selection strategies.
View Article and Find Full Text PDF

Recently, we identified bovine herpesvirus 5 (BoHV-5) in a vaginal swab from aborted cattle. It was unusual in two aspects: first, its association with abortion (it is otherwise mainly associated with encephalitis), and second, it is the first report from India (as it is mostly restricted to South American countries). In this study, we conducted the genome sequencing of the BoHV-5 isolate and provided insights into its phylogenetic relationships with other BoHV-5 strains.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!