Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Distemper Virus Affects Wild Carnivores of All Stripes

02.03.2015

Tigers, lions and other wild carnivores, already under threat from poaching and habitat loss, are falling victim to a virus that could soon drive endangered populations to extinction.

Canine distemper virus strikes wild carnivores of all stripes, including Amur tigers, – also called Siberian tigers – which roam the Russian Far East in ever-dwindling numbers.

Scientists from the Wildlife Conservation Society, Cornell and the University of Glasgow are urging swift action to address the crisis by developing control measures for the virus, such as delivering a vaccine that is safe for these animals. They also suggest renaming canine distemper virus to reflect the wide range of animals that can carry the virus and suffer from the disease.

“These small endangered populations of carnivores face a lot of threats, but distemper can be the straw that breaks the camel’s back in terms of their survival,” said Colin Parrish, a virologist and director of the Cornell Feline Health Center.

Parrish said Amur tigers are under particular threat because they number in the hundreds and many live in sub-populations of fewer than 25 breeding adults. Between 2007 and 2012, canine distemper contributed to the decline of one well-studied population of Amur tigers from 38 to only 9, a reduction the group may not be able to recover from, Parrish said. Similarly, more than 1,000 lions in the Serengeti National Park disappeared in an outbreak of distemper that began in 1993 – a population decline of about 30 percent.

Studies show that in many cases, wild carnivores are not contracting the distemper virus directly from domestic dogs, but they are getting it from other wild animals that act as intermediaries. This makes controlling the virus exceedingly difficult, Parrish said, and efforts to vaccinate dogs or other wild carnivores may not offer protection for tigers or other large cats.

The situation is urgent, but current distemper vaccines haven’t necessarily been thoroughly tested in the wild species that need protection. While many vaccines appear to be safe, some may not be effective in generating long-lived immune defenses, Parrish said. The group discussed ways to test the safety and efficacy of distemper vaccines in captive animals as well as developing innovative means of immunizing wild animals with oral or aerosol formulations planted in bait or on marking posts.

Renaming the canine distemper virus may be in order, Parrish said, in part because the name is not a good reflection of its host range among carnivores; the virus can affect seals, tigers, bears and more. Also, the word “canine” can lead to management efforts that place too much emphasis on controlling the infection in dogs, when other wild animals carry the virus to infect other species.

“Rather than waiting for the possibility of future outbreaks and more extensive population declines to intervene, addressing the issue before it potentially causes irreversible impacts to tiger populations is likely the most important step,” said Andrew Allison, a postdoctoral fellow at the Baker Institute for Animal Health in Cornell’s College of Veterinary Medicine

Cornell University has television, ISDN and dedicated Skype/Google+ Hangout studios available for media interviews. For additional information, see this Cornell Chronicle story.

Contact Information
Melissa Osgood
Media Relations Specialist
mmo59@cornell.edu
Phone: 607-255-2059
Mobile: 716-860-0587

Melissa Osgood | newswise
Further information:
http://www.cornell.edu

More articles from Ecology, The Environment and Conservation:

nachricht Upcycling 'fast fashion' to reduce waste and pollution
03.04.2017 | American Chemical Society

nachricht Litter is present throughout the world’s oceans: 1,220 species affected
27.03.2017 | Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Making lightweight construction suitable for series production

More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.

Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...

Im Focus: Wonder material? Novel nanotube structure strengthens thin films for flexible electronics

Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.

"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...

Im Focus: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

7th International Conference on Crystalline Silicon Photovoltaics in Freiburg on April 3-5, 2017

03.04.2017 | Event News

 
Latest News

NASA's Fermi catches gamma-ray flashes from tropical storms

25.04.2017 | Physics and Astronomy

Researchers invent process to make sustainable rubber, plastics

25.04.2017 | Materials Sciences

Transfecting cells gently – the LZH presents a GNOME prototype at the Labvolution 2017

25.04.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>