2017
DOI: 10.1590/s0100-736x2017000600004
|View full text |Cite
|
Sign up to set email alerts
|

Investigação sorológica de Rickettsia rickettsii e Coxiella burnetii em caprinos e ovinos no entorno do Parque Nacional da Serra das Confusões, Piauí

Abstract: RESUMO: As doenças causadas por bactérias dos gêneros Rickettsia e Coxiella possuem como vetores artrópodes hematófagos, na sua maioria carrapatos, que atuam diretamente na transmissão de patógenos responsáveis por enfermidades de grande impacto na medicina veterinária e humana. O presente estudo objetivou realizar uma investigação sorológica de Rickettsia rickettsii e Coxiella burnetii em caprinos e ovinos criados no entorno do Parque Nacional da Serra das Confusões (PNSC), localizado no estado do Piauí, regi… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1

Citation Types

1
4
0

Year Published

2018
2018
2024
2024

Publication Types

Select...
7

Relationship

0
7

Authors

Journals

citations
Cited by 8 publications
(5 citation statements)
references
References 31 publications
1
4
0
Order By: Relevance
“…These findings suggest the exposure of horses to this microorganism, especially because the seropositive animals did not have a travel history to other locations. Moreover, one animal had a high endpoint titer (2,048), suggesting recent exposure to rickettsiae (Ueno et al, 2016;Guimarães et al, 2017). Furthermore, we clearly demonstrated the reactivity of horse sera to R. rickettsii antigens.…”
supporting
confidence: 51%
“…These findings suggest the exposure of horses to this microorganism, especially because the seropositive animals did not have a travel history to other locations. Moreover, one animal had a high endpoint titer (2,048), suggesting recent exposure to rickettsiae (Ueno et al, 2016;Guimarães et al, 2017). Furthermore, we clearly demonstrated the reactivity of horse sera to R. rickettsii antigens.…”
supporting
confidence: 51%
“…While we found a relatively low seroprevalence for C. burnetii (<3.3%) among sheep and goat, it is noteworthy that half of the seropositive animals had high endpoint titers, varying from 1,024 to 65,536 (Table 1). High endpoint titers are suggestive of recent infection (GUIMARÃES et al, 2017;OLIVEIRA et al, 2018); however, we cannot discard cross-reactions with other unknown agents in some of our seropositive animals, especially those with low endpoint titers. Regardless, the overall low seroprevalence values in the present study are similar to the 2% (3/153) seroprevalence on sheep that was reported in another study from the Caatinga Biome (south of Piauí state) in northeastern Brazil (GUIMARÃES et al, 2017).…”
Section: Discussionmentioning
confidence: 91%
“…High endpoint titers are suggestive of recent infection (GUIMARÃES et al, 2017;OLIVEIRA et al, 2018); however, we cannot discard cross-reactions with other unknown agents in some of our seropositive animals, especially those with low endpoint titers. Regardless, the overall low seroprevalence values in the present study are similar to the 2% (3/153) seroprevalence on sheep that was reported in another study from the Caatinga Biome (south of Piauí state) in northeastern Brazil (GUIMARÃES et al, 2017). In contrast, much higher seropositivity to C. burnetii has been reported among goats in the Agreste of the state of Alagoas (55.1%; 172/312) (OLIVEIRA et al 2018), and in the Atlantic forest Biome of Rio de Janeiro state, where 66.6% (2/3) of sheep and 50% (5/10) of goats were seropositive (MARES-GUIA et al, 2014).…”
Section: Discussionmentioning
confidence: 91%
See 1 more Smart Citation
“…Of these, the anti-C. burnetii antibodies was observed through the IFA test (phase I and phase II) in two (14.3%) dogs with endpoint titers of 64, five (50%) goats with endpoint titers ranging from 64 to 128, and two (66.7%) sheep with endpoint titers of 64, as well as bacterial DNA in six (60%) milk samples, two (14.3%) dog blood samples, and two (20%) goat blood samples (Mares-Guia et al, 2014). In 2017, the presence of 1.96% of anti-C. burnetii antibodies using the IFA test (no phase I or phase II specification) from 153 sheep studied in Piauí State with titers ranging from 64 to 4,096 was confirmed (Guimarães et al, 2017). In 2018, seropositivity of 55.12% for C. burnetii among 312 goats was reported, in Alagoas State, through the ELISA test, with 65.7% of the serorreactives presenting high titers (≥ELISA++).…”
Section: Situation In Brazilmentioning
confidence: 89%