Emergence of a New Deadly Hendra Virus Variant Found in Flying Foxes
Discover the latest findings on a newly identified Hendra virus variant in flying foxes, its risks to humans and animals, and ongoing research to prevent outbreaks.
The Hendra virus continues to pose a serious threat to human and animal health, with no available vaccine to date.
Recent research conducted by Australian scientists has revealed a novel variant of the Hendra virus present in the urine of flying foxes and fruit bats native to Australia. This groundbreaking study was recently published in the journal Emerging Infectious Diseases.
- The Hendra virus is a highly lethal pathogen primarily carried by flying foxes, but it can also infect horses and humans.
- First identified in 1994, the virus caused the deaths of thirteen horses and one human during its initial outbreak.
- Symptoms in infected individuals range from mild flu-like signs to severe respiratory and neurological complications that can be fatal.
- Previous studies indicate a mortality rate of up to 60% in humans and 75% in horses.
- Currently, there are no specific antiviral treatments or vaccines available; treatment focuses on intensive supportive care to manage symptoms.
To date, Hendra virus cases have been confined to Australia's eastern coastline, particularly around Brisbane and Queensland. However, the discovery of this new variant expands the potential geographic risk, suggesting that flying foxes may serve as carriers beyond previously known areas.
The recent study highlighted a horse death caused by the Hendra virus that initially tested negative for known virus strains. Only after updating diagnostic tests to detect the new variant, named HeV-g2, was the infection confirmed.
Comparative analysis showed a 99% genetic similarity between the novel variant found in the horse and samples collected from flying fox urine, indicating a likely cross-species transmission event.
Scientists are now intensifying surveillance efforts to monitor the spread of the HeV-g2 variant. Their goal is to refine animal care guidelines and reduce the risk of human infections. The full extent of the virus's threat remains under investigation.
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