Publications by authors named "Claudia Mello Ribeiro"

Article Synopsis
  • A study was conducted to estimate the prevalence of a rickettsial pathogen responsible for spotted fever in ticks across various regions in the Americas, as no prior systematic reviews had been done.
  • Data was collected using PRISMA guidelines from four databases, and a random-effects model was employed to analyze the pooled prevalence and its variability.
  • Findings revealed that Colombia had the highest prevalence of the pathogen in ticks (17.00%), with Mexico (9.89%), Panama (2.76%), Brazil (2.03%), and the United States (0.50%) following; the most commonly infected tick species were Rhipicephalus (6.23%) and Amblyomma (4.36%).
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Brazilian spotted fever (BSF) is a highly lethal disease caused by Rickettsia spp. and is transmitted by ticks of the genus Amblyomma. Understanding the epidemiology of BSF in each region can help direct health surveillance actions.

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Neospora caninum is one of the main infectious agents that cause reproductive disorders in cattle. However, knowledge about the prevalence and causal factors of bovine neosporosis is needed in order to establish control measures. The purpose of this study was to estimate the pooled prevalence and determine the risk factors of bovine neosporosis using meta-analytic methods.

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The aim of this study was to assess the effects of a synbiotic composed of Bifidobacterium animalis and fructooligosaccharides on female rats infected with Toxoplasma gondii. Female Wistar rats, treated or not with dexamethasone, were daily supplemented with synbiotics for 21 days. After 15 days of supplementation, the rats were orally infected with 10(4)T.

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