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HENDRA VIRUS
Answers: 3 Views: 688 Rating: 2 Posted: 13 years ago

Hendra virus disease is caused by the Hendra virus which was first called equine morbillivirus because it was first isolated from horses during a then-unexplainable outbreak in 1994. It is a very rare but very fatal disease.

 

History

 

In 1994, a respiratory disease which affected both the horses and their handlers caused 15 horses – and 2 people who had been in close contact with them – in separate places to die. It was thought that the disease was caused by morbillivuris. However, the first strains were isolated from affected specimen from Hendra, Australia. The strain was later classified under the Paramyxoviridae family.

 

Around 10 outbreaks were recorded for areas which were geographically far from each other. Thus, even if the virus isolated from each area proved to be the same, the connection between these occurrences was difficult to establish. An extensive screening of various animals revealed that flying fox (bats) species were natural hosts to the virus. However, transmission of this virus to the humans in close contact was not established, and it was impossible for the horses to have been exposed to the bats.

Symptoms

 

Hendra virus disease is rare but is extremely fatal in humans or horses. Of the three human cases recorded, two showed extreme flu-like symptoms accompanied by encephalitis which caused fever, drowsiness – and later – coma, breathing difficulties and death.

 

Transfer

 

The virus is transferred to humans from fluid secretions and tissues of the infected horses



Read more: http://www.righthealth.com/topic/hendra_virus_disease#ixzz1SN13bYdV

Rating: 0 Posted: 13 years ago

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