HENDRA VIRUS, HORSES AND HORSE OWNERS.

The Hendra virus is a virus that mainly infects fruit bats also called flying foxes which can be passed on to horses, people and other animals. The virus is a deadly zoonoses. Hendra virus is very fragile. It is easily killed by heat, soap or detergents and by desiccation (drying out). It may survive in the environment from several hours to several days depending on environmental conditions. Survival is longer in cool moist conditions where the pH is close to neutral. Horses can shed Hendra virus before they show any sign of illness. All horse handlers should protect themselves by routinely using good hygiene practices whenever handling horses.Always cover any cuts exposed skin before handling your horse. Always wash your hands with soap and water, particularly after handling your horse's mouth or nose. Do not smoke, eat or touch your eyes, nose or mouth until you have washed your hands, every time you put a bridle on or take it off you are likely to contact the horse's saliva. The Hendra virus should be suspected whenever a horse's health deteriorates rapidly. The symptoms in horses include a sudden fever with a respiratory or neurological illness and rapid death, laboured breathing ,frothy and/or blood stained nasal discharge ,a temperature above 40 degreesC. The neurological changes are tilting of the head, loss of vision, abnormal muscle twitching, weakness and loss of balance. Some horses show colic symptoms. What to do when horses have been confirmed to have the virus; 1)quarantine. 2) protective clothing .Everyone handling a sick horse must wear full protective clothing. Protective clothing must be fitted correctly. Put on protective clothing before approaching the horse.After handling the horse, remove and dispose of protective clothing carefully into waste bags, making sure there is no contact with your face, particularly your eyes, mouth and nose.Carefully remove any clothing contaminated with the horse's body fluids. Wash your hands thoroughly after removing the protective clothing and horse owners should always have a protective clothing for safety. Vaccination of horses is very important.

Viruses that spread from animals to humans are on the rise.

Viruses that develop in animals and can spread to humans are on the rise around the world and scientists say more research is needed to prevent them from evolving. Viruses that pose a risk to both human and animal health are known as zoonotic diseases.The more severe examples include ebola in west Africa, Middle East Respiratory Syndrome (MERS) in the Arabian Peninsula, Severe Acute Respiratory Syndrome (SARS) in Asia, and even Hendra in Australia. The University's Dr Siobhan Mor has just completed a study into how much scientists know about such animal diseases before they develop.She said half of the data that exists focuses on known zoonotic diseases, and there is a lack of information on animal viruses that have the potential to develop into human ones."We identified 10 diseases that occur at the livestock-wildlife interface, majority of which also affect humans, and found that the majority of the research has been occurring on these [10] particular diseases since the 1960s," Dr Mor said."There has been a lot of research on these particular diseases, with far less on other diseases occurring."Dr Mor said the findings are concerning, given animal diseases could pose a greater risk to human health as livestock production systems become more intensive."We are seeing more diseases occurring now in people as a result of those livestock systems and the way we are producing human food," she said.We are seeing more diseases occurring now in people as a result of those livestock systems and the way we are producing human food. Dr Siobhan Mor, University of Sydney, "We are raising animals in close proximity to wildlife because we have cleared land in order to make way for our agricultural production." Dr Mor said sometimes new diseases are detected in humans first, which are later found to have initially developed in animals, such as HIV."Historically, we know that HIV comes from animals, but what the research shows is there are increasingly new diseases being found in humans and we later determine have been occurring in animals as well."Dr Mor said Severe Acute Respiratory Syndrome, or SARS, is a more modern example of an animal disease that has become more problematic for humans in recent decades."I think everyone's eyes are on viruses known as coronaviruses," she said. Zoonotic diseases have become more publicised recently with the west African ebola outbreak, which has so far killed more than 10,000 people.Fruit bats are thought to be the natural hosts of the ebola virus, as is also the case with the deadly Hendra virus in Australia. Hendra has infected seven Australians and killed four, as well as countless horses, since it was first recorded in the Brisbane suburb of Hendra in 1994. Dr Mor said human Hendra cases demonstrated a need to understand more about bats, which are linked to a number of zoonotic diseases."Bats are really interesting and we now know they harbour many germs which can make people very sick," Read more here; http://www.abc.net.au/news/2015-07-21/researchers-say-more-information-is-needed-zoonotic-diseases/6635738

VACCINATION OF HORSES AGAINST THE HENDRA VIRUS.

The disease is carried by bats and can be fatal for horses and humans.Hunter Valley vets are reporting a drop off in the number of people getting their horses vaccinated for Hendra virus.Ian Gollan recommends getting horses vaccinated, even though there have been no cases of the deadly disease locally.Read more here;http://www.abc.net.au/news/2015-12-01/vets-urge-horse-owners-to-remain-vigilant-over-hendra-vaccinati/6988886

VETERINARIANS AND THE HENDRA VIRUS IN HORSES.

Horse owners concerned about the Hendra vaccine ,Unvaccinated horses die through lack of treatment. Veterinarians are skeptical about call out now,and they have made it clear that if horses are not vaccinated,they will not be handled. Currently, most vets refuse to treat sick or injured horses if the animal has not been vaccinated against the deadly virus, for reasons of legality and personal safety.However, in some extreme cases, horses have died while vets await blood test results to clear the animal of Hendra."I am working off of what horse owners are saying to me, and they are not happy with a few things that have reared their ugly head in recent times," Mr Pearce said."I've always thought to myself that [the vets] have a fair argument, but why can't vets use personal protective equipment (PPE) when they go to treat these horses?"If a vet is prepared to put on the gear, treat a horse, then they are doing the right thing."Those arguments don't stand up as far as I'm concerned because they have the protective equipment there for them to use, which would significantly reduce any risk they have."Mr Pearce speculated the reason vets refused to treat unvaccinated sick horses was not just about safety concerns, but he would not specify what other reasons there may be."I don't believe this argument is about PPE. There has to be something else that puts these vets in a situation where they say they won't treat horses unless they have been vaccinated," Vets are very cautious when handling sick horses especially if they have not taken the hendra vaccine, because some vets have died from exposure during treatment and also because of prosecution. A balance must be maintained among all parties to prevent further death. Read more here;http://www.abc.net.au/news/2015-11-18/hendra-policy-opponents-gain-new-voice/6950790

HENDRA VIRUS IN HORSES.

Horses that came into contact with urine from black flying foxes were most likely to catch the virus, It has long been known that bats are the natural hosts of the Hendra virus and could pass it to horses, but exactly how that happens has been difficult to prove. Dr Hume Field is a science and policy advisor with US conservation group EcoHealth Alliance, and the former principal scientist with the Queensland Centre for Emerging Infectious Diseases. He said a recent study of 3,000 bats from Charters Towers in north Queensland, to Sydney in New South Wales, indicated urine was the most likely link."The study took samples from urine, faeces, saliva, and nasal discharge and the clear evidence was that urine, by far, was the most common source in which the virus was found," Dr Field said."Faeces was further down the line and saliva and nasal discharge were very infrequent."But despite urine being the most likely source of contamination, Dr Field said more information was needed to establish how horses come into contact with it. if you had a horse that was resting or grazing under a tree where flying foxes were feeding, and flying foxes urinate a lot when foraging in trees, there is the potential for that horse stranding underneath to get directly contaminated."It can happen through the nose, the mucus membranes of the eyes or as well horses can ingest some urine on grass."Dr Hume said researchers had also identified which species of flying fox were more likely to pass on the disease, and said horse owners in areas where black flying foxes were common should be most wary. Dr Hume said the study explored three species; red flying foxes, black flying foxes, and grey-headed flying foxes.He said various information over the years made scientists think that not all flying foxes were the same when it came to the Hendra virus risk they posed.But this study into 3,000 animals across three species offered a better understanding, he said."It was abundantly clear that all of the positive detections of Hendra viruses came from black flying foxes and none came from little red flying foxes and none came from grey-headed flying foxes," he said."We know there are antibodies in all of those species, so they all get infected at some stage." The Department of Agriculture said vaccination was the best defence, and everyone should make their own choice. vaccination may be enforced in some cases to prevent death in horses. read more here;http://www.abc.net.au/news/2015-07-27/hendra-urine-queensland/6650128