Publications by authors named "Raquel Silva Alves"
Two 1-day-old full-term female calves from different farms located in the Brazilian state of Rio Grande do Sul were unable to stand due to paresis of the pelvic limbs. Both calves had spina bifida on the spinal lumbar segment and were submitted to euthanasia due to poor prognosis. Postmortem examination revealed cerebellar herniation, caudal displacement of the brainstem, rostral deviation of the cranial nerves, caudal extension of occipital lobes, absence of dorsal lamina of lumbar vertebrae with exposed spinal cord, myelodysplasia, kyphosis, segmental spinal agenesis, renal fusion, muscular atrophy, and arthrogryposis.
View Article and Find Full Text PDFIn the fall of 2021, a significant mortality event in free-ranging Southern Lapwing (Vanellus chilensis) occurred on a soccer field in southern Brazil. Approximately 130 adult southern lapwings died after showing weakness and flaccid paralysis, characterized by the inability to move or fly and drooped wings. Due to the large number of animals affected, there was concern that they had been criminally poisoned.
View Article and Find Full Text PDFBackground And Aim: Flemish cattle in Brazil are on the brink of extinction and are found only in one herd in Lages, Santa Catarina State. This study aimed to uncover the reasons for the recurring abortions in the Flemish cattle herd.
Materials And Methods: Seventeen Flemish fetuses underwent postmortem examinations, with samples collected for histopathology and microbiology culture tests, polymerase chain reaction (PCR) test for , and reverse transcription-PCR (RT-PCR) test for bovine viral diarrhea virus (BVDV) from 2015 to 2020.
Article Synopsis
- - The white-winged vampire bat (Diaemus youngi) is the rarest vampire bat species in the Neotropical region and primarily feeds on bird blood, but little is known about the viruses affecting it.
- - This study used high-throughput sequencing to analyze various organs from these bats, identifying 13 viral genomes, including those related to gemykrogvirus, smacovirus, and torque teno viruses, as well as sequences of bat paramyxovirus.
- - The findings enhance understanding of the viral diversity linked to white-winged vampire bats and establish a reference point for future research on viral outbreaks in these animals.
The vampire bat (Desmodus rotundus) is a haematophagous animal that feeds exclusively on the blood of domestic mammals. Vampire bat feeding habits enable their contact with mammalian hosts and may enhance zoonotic spillover. Moreover, they may carry several pathogenic organisms, including coronaviruses (CoVs), for which they are important hosts.
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