Publications by authors named "F C Camelo"
The Brazilian western Amazon is experiencing its largest laboratory-confirmed Oropouche virus (OROV) outbreak, with more than 6,300 reported cases between 2022 and 2024. In this study, we sequenced and analyzed 382 OROV genomes from human samples collected in Amazonas, Acre, Rondônia and Roraima states, between August 2022 and February 2024, to uncover the origin and genetic evolution of OROV in the current outbreak. Genomic analyses revealed that the upsurge of OROV cases in the Brazilian Amazon coincides with spread of a novel reassortant lineage containing the M segment of viruses detected in the eastern Amazon region (2009-2018) and the L and S segments of viruses detected in Peru, Colombia and Ecuador (2008-2021).
View Article and Find Full Text PDFInvestigation of an outbreak of disease compatible with scurvy in a male penitentiary in the state of Ceará, Brazil, 2019-2020: a case-control study.
Epidemiol Serv Saude
September 2023
Article Synopsis
- An outbreak of scurvy-like illness occurred among male inmates in a Ceará prison, primarily affecting those over 40 years old, with symptoms including lower limb edema, pain, and difficulty walking.
- The study highlights the importance of understanding scurvy outbreaks in similar contexts, contributing to better health service practices through epidemiological research.
- Preventative strategies and policies targeting hypovitaminosis in incarcerated populations are necessary, alongside improvements in health services' ability to identify and manage such cases effectively.
Article Synopsis
- Dynamic contrast-enhanced MRI (DCE-MRI) is being used to study vertebral body tumors, but the delayed contrast flow in the spine can lead to incorrect diagnoses of malignancies due to miscalculations in analyses.
- Researchers adjusted the arterial input function (AIF) curve to compensate for this delay, hypothesizing that this would improve the accuracy of blood volume measurements (V) in vertebral lesions.
- In a study of 18 patients with confirmed spinal metastases, adjustments to the AIF curve resulted in significantly higher V values, indicating that refining the DCE-MRI analysis can enhance the detection of active metastases.
Terrestrial leaf litter is an essential energy source in forest streams and in many tropical streams, including Cerrado, litter undergoes biological decomposition mainly by fungi. However, there is a limited understanding of the contribution of isolated fungal species to in-stream litter decomposition in the tropics. Here we set a full factorial microcosms experiment using four fungal species (Aquanectria penicillioides, Lunulospora curvula, Pestalotiopsis submerses, and Pestalotiopsis sp.
View Article and Find Full Text PDFMultisystem inflammatory syndrome in children: a cross-sectional study of cases and factors associated with deaths during the COVID-19 pandemic in Brazil, 2020.
Epidemiol Serv Saude
November 2021
Objective: To characterize the clinical-epidemiological profile of multisystem inflammatory syndrome in children temporally associated with COVID-19 (MIS-C), and to identify factors associated with MIS-C deaths in Brazil, 2020.
Methods: This was a cross-sectional study, using national MIS-C monitoring data. Logistical regression was performed to estimate crude and adjusted odds ratios (OR).