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1.
Vet Med Sci ; 10(2): e1381, 2024 03.
Artigo em Inglês | MEDLINE | ID: mdl-38379344

RESUMO

The current study aims to assess the prevalence of different genera of Rickettsiales, intracellular bacteria, in dogs across various regions of Iran. Rickettsiales, as zoonotic pathogens, can have various manifestations in different species, including immunosuppression, anaemia and neuropathy. Due to their close interactions with people and livestock, dogs can serve as reservoirs and transmit these pathogens to humans and other animals. The data from this research can be valuable for managing and controlling related diseases and complications in Iran and possibly neighbouring countries. Pertinent data for this study was gathered without time limitations until 1 March 2022, from different databases. Of all the inspected studies, 26 were eligible based on the inclusion criteria. The Egger test result and asymmetry in the funnel plot revealed significant publication bias; therefore, the meta-analysis model was corrected with the trim-and-fill method. After correction, the prevalence of rickettsial infections among dogs varies by genus - 20.1% for Anaplasma spp. and 10% for Ehrlichia spp. - with an overall prevalence estimated at 18.3% by random-effects analysis. The highest and lowest estimated pooled prevalences were associated with the southwestern (38.5%) and southern (0.3%) provinces of Iran, respectively. The pooled prevalence of rickettsial infection was higher in female dogs (OR = 1.198; p < 0.978; 95% CI, 0.842-1.705) and in dogs ≤2 years (OR = 1.014; p < 0.312; 95% CI, 0.598-1.72), but the difference was not statistically significant. Ultimately, the pooled prevalence of rickettsial infections among dogs is relatively low compared to other countries like Qatar, Iraq, Saudi Arabia and Turkey, which are nearby Iran. Given the significant clinical outcomes of this disease, necessary measures for prevention should be taken.


Assuntos
Doenças do Cão , Infecções por Rickettsia , Rickettsia , Humanos , Cães , Feminino , Animais , Ehrlichia , Anaplasma , Prevalência , Irã (Geográfico)/epidemiologia , Infecções por Rickettsia/epidemiologia , Infecções por Rickettsia/microbiologia , Infecções por Rickettsia/veterinária , Doenças do Cão/epidemiologia , Doenças do Cão/microbiologia
2.
J Equine Vet Sci ; 123: 104227, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36649828

RESUMO

Brucellosis, a bacterial infection caused by Brucella spp., is a widespread zoonosis concerning human and animal health. In equines, brucellosis may occur asymptomatically or with clinical signs such as arthritis, bursitis, and tenosynovitis. This study aims to ascertain the overall seroprevalence of equine brucellosis and its related factors, including geographic region, serological detection method, equine's species, gender, age, and body condition. This is because equine brucellosis is a zoonotic infection with significant epidemiological implications. The systematic literature search was conducted from January 1, 1990, to April 1, 2022, in the following electronic databases: Google Scholar, Scopus, Pub Med, Science Direct, Web of Science, Embase, Springer, and ProQuest. Based on the preferred reporting items for systematic reviews and meta-analyses (PRISMA) and inclusion criteria, 49 qualified studies were acquired from several countries. Because Egger's test result and the asymmetry in the funnel plot indicated significant publication bias, the meta-analysis model was corrected using the trim-and-fill method. After correction, the pooled seroprevalence of equine brucellosis was 1.92% (95% CI, 0.67-3.79; estimated by the random effect model). Based on meta-regression analysis, the probable heterogeneity factors may be geographic areas (continents and countries). The brucellosis seroprevalence in equines was the lowest in Europe (0%, 95% CI, 0-0.1) and the highest in Asia (10.03%, 95% CI, 8-12.9). The highest overall estimate of seroprevalence of Brucella infection in equines based on a subset of serological tests was made using the serum agglutination test (10.2%, 95% CI, 7.7-13.4). The combined seroprevalence of brucellosis in donkeys (7.3%, 95% CI, 4.9-9.7) was higher than in other equine species. The overall seroprevalence of brucellosis in female equines was significantly higher than in males (OR = 1.437; 95% CI, 1.025-2.014); despite this, the overall seroprevalence had no significant difference based on other risk factors such as age and body condition. Understanding the epidemiology of this zoonotic infection in equines is critical for one-health integration. In addition, this study's results may be appropriate for controlling and managing equine brucellosis.


Assuntos
Brucella , Brucelose , Doenças dos Cavalos , Masculino , Animais , Cavalos , Humanos , Feminino , Estudos Soroepidemiológicos , Brucelose/epidemiologia , Brucelose/veterinária , Brucelose/microbiologia , Zoonoses/epidemiologia , Equidae
3.
Trop Anim Health Prod ; 53(5): 449, 2021 Sep 17.
Artigo em Inglês | MEDLINE | ID: mdl-34533637

RESUMO

Bovine viral diarrhea virus (BVDV) is an important pathogen correlated with reproductive, respiratory, and gastrointestinal disorders in cattle. Furthermore, it causes endemic infections and significant economic losses in cattle herds worldwide. This review was performed to determine the pooled seroprevalence of BVDV infection and related risk factors among cattle in Iran. Data were systematically gathered without time limitation until 1 December 2020 in the Islamic Republic of Iran from the following electronic databases: PubMed, Google Scholar, Science Direct, Scopus, Web of Science, Elmnet, Magiran, Irandoc, Scientific Information Database (SID), and Civilica. According to the preferred reporting items for systematic reviews and meta-analyses (PRISMA) and inclusion criteria, 28 eligible studies were obtained from various Iran areas. In total, the pooled seroprevalence of BVDV infection, using random-effect model, was estimated 52% (95% CI, 40.1-63.9) in cattle. According to serological detection methods, pooled seroprevalence was as follows: based on ELISA 53.9% and SVN 25.1%. The highest pooled seroprevalence of BVDV infection was in the southeast provinces of Iran (78.4%) and lowest pooled seroprevalence was in Southwest provinces of the country (28.5%). The pooled seroprevalence of BVDV infection in cattle ≤ 2 years was significantly lower than cattle > 2 years (OR = 0.606; 95% CI, 0.397-0.925), whereas the pooled seroprevalence had no significant difference according to other factors such as gender, herd size, and herd types. In conclusion, the pooled seroprevalence of BVDV infection among cattle in Iran is relatively high. The seroprevalence was different among geographical regions of the country. These results are desirable for managing the control programs of this infection in Iran.


Assuntos
Doença das Mucosas por Vírus da Diarreia Viral Bovina , Doenças dos Bovinos , Vírus da Diarreia Viral Bovina , Animais , Doença das Mucosas por Vírus da Diarreia Viral Bovina/epidemiologia , Bovinos , Diarreia/veterinária , Irã (Geográfico)/epidemiologia , Estudos Soroepidemiológicos
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