We report the identification of two orthobunyaviruses, Melao virus (MELV) and Oropouche virus (OROV), in plasma specimens from Haitian children with acute febrile illness who presented during outbreaks caused by alpha- and flaviviruses in 2014. Heretofore not described as a human pathogen, MELV was isolated in cell culture from the plasma of five case patients. OROV RNA was detected in the plasma of an additional child, using an unbiased sequencing approach, with phylogenetic inference suggesting a close relationship with strains from Brazil. Abdominal pain was reported by four case patients with MELV infections, with lymphadenopathy noted in two cases. Our findings document the occurrence of these orthobunyaviruses within the Caribbean region and highlight the critical importance of surveillance with viral genome sequence analyses to identify outbreaks caused by these and other emerging viruses.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8238191PMC
http://dx.doi.org/10.1371/journal.pntd.0009494DOI Listing

Publication Analysis

Top Keywords

orthobunyaviruses caribbean
8
oropouche virus
8
outbreaks caused
8
case patients
8
caribbean melao
4
melao oropouche
4
virus infections
4
infections school
4
school children
4
children haiti
4

Similar Publications

Oropouche virus: Understanding "sloth fever" disease dynamics and novel intervention strategies against this emerging neglected tropical disease.

Virulence

December 2024

Department of Veterinary & Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, Twin Cities, MN, USA.

Article Synopsis
  • Oropouche virus (OROV) is an arbovirus that causes "sloth fever," transmitted mainly by midges in both rural and urban areas.
  • Human infections can result in acute fever and, in severe cases, neurological issues, with over half a million people infected since its first detection in 1955.
  • The absence of FDA-approved vaccines and treatments means current care focuses on supportive measures, highlighting the importance of developing vaccines to control outbreaks, especially as OROV risk increases with climate change and global travel.
View Article and Find Full Text PDF

Oropouche Virus: An Emerging Neuroinvasive Arbovirus.

Ann Neurol

November 2024

Neuroinfectious Diseases Group, Department of Neurology, and Department of Medicine and Immunology-Microbiology, University of Colorado School of Medicine, Aurora, CO.

Article Synopsis
  • - Oropouche virus (OROV) is an emerging arbovirus found in parts of South and Central America, the Caribbean, and is now being reported in Cuba, the US, and Europe, primarily transmitted between certain animals and mosquitoes to humans.
  • - It causes flu-like symptoms in about 60% of infections, can have a biphasic course leading to symptom recurrence, and poses risks of vertical transmission that might affect pregnancies and fetal development.
  • - Diagnosis involves detecting the virus or antibodies in blood or cerebrospinal fluid, with no antiviral treatments or vaccines currently available, making mosquito bite prevention essential for control.
View Article and Find Full Text PDF

On 27 May 2024, the Cuban Ministry of Health reported the first outbreak of Oropouche fever on the island. The etiologic agent, Oropouche virus (OROV), is a poorly understood arbovirus that has been known since the 1960s and represents a public health burden in Latin America. We report the whole-genome characterization of the first European OROV isolate from a returning traveler from Cuba with Oropouche fever-like symptoms.

View Article and Find Full Text PDF

A febrile man in Italy who had traveled to Cuba in July 2024 was diagnosed with Oropouche fever. Reverse transcription PCR detected prolonged shedding of Oropouche virus RNA in whole blood, serum, urine, and semen. Sixteen days after symptom onset, replication-competent virus was detected in semen, suggesting risk for sexual transmission.

View Article and Find Full Text PDF
Article Synopsis
  • Oropouche virus is spreading to new regions in South America and the Caribbean, raising concerns due to its vertical transmission and reported deaths.
  • A review highlights factors affecting its spread and assesses the risk of local transmission in the U.S., which is currently considered low due to ecological differences.
  • Emphasis is put on the need for better understanding and timely public health responses to control potential further outbreaks.
View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!