Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Huge numbers of camels die in Africa and Saudi Arabia

10.10.2007
Analyses are being conducted to confirm or rule out the hypothesis of food intoxication in the countries concerned. Poisoning caused by the ingestion of toxic plants, mycotoxins (microscopic fungi), or mineral deficiencies has also been suggested.

The deaths are probably due to a multitude of factors, which have a detrimental effect on the immune system, including some viruses which could increase the severity of infections or parasitic infestations in animals.

As Bernard Faye, head of the animal resources department at CIRAD, explains: "For years, we have been witnessing new pathologies in camels. There is nothing to suggest that the causes of these diseases are identical because the symptoms are not always the same. "

The morbillivirus of small ruminants

The morbillivirus, which affects small ruminants, is found in Africa, the Arab Peninsula, the Middle East and India. It affects sheep and goats, in particular, but can affect other species. The disease is characterised by a high temperature, body lesions, pneumonia and death within 8 days.

In Ethiopia, during 1995-1996 and in Kenya and Sudan at the start of 2000, the virus PPR (small ruminant virus), was identified as being the potential cause of the death of hundreds of dromedaries. The clinical and epidemiological observations combined with the laboratory results (serology tests, viral detection), would suggest that this virus plays a role in the emergence of an enzootic disease among camel populations in the Horn of Africa. Other pathogens have been isolated but their presence could be due to the fact that the animals’ immuno-defence systems are depressed because of the presence of this virus.

" Additional research is required in order to determine the causes of this disease and to identify whether or not the PPR virus has a role to play, such as continued virology diagnoses, epidemiological studies to measure the respective roles of the virus, other pathogenic agents and environmental risk factors ", according to François Roger, Head of CIRAD’s research unit (UPR) Epidemiology and ecology of animal diseases. " In this way, we could contribute to understanding the causes of the emergence of this disease and its socio-economic impact ".

Helen Burford | alfa
Further information:
http://www.cirad.fr/en/presse/communique.php?id=306

More articles from Agricultural and Forestry Science:

nachricht Plasma-zapping process could yield trans fat-free soybean oil product
02.12.2016 | Purdue University

nachricht New findings about the deformed wing virus, a major factor in honey bee colony mortality
11.11.2016 | Veterinärmedizinische Universität Wien

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

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

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

Im Focus: How to inflate a hardened concrete shell with a weight of 80 t

At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).

Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

Nothing will happen without batteries making it happen!

05.01.2017 | Event News

 
Latest News

A big nano boost for solar cells

18.01.2017 | Power and Electrical Engineering

Glass's off-kilter harmonies

18.01.2017 | Materials Sciences

Toward a 'smart' patch that automatically delivers insulin when needed

18.01.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>