Outbreaks of FMD in Mongolia affect domestic sheep, goats, camels, and cattle as well as Mongolian gazelles. In a country where roughly one-third of the human population relies directly on livestock production for their subsistence, outbreaks of FMD cause severe disruption of the rural economy.
The study, titled "Serosurveillance for Foot-and-Mouth Disease in Mongolian Gazelles (Procapra gutturosa) and Livestock on the Eastern Steppe of Mongolia," appears in the January edition of the Journal of Wildlife Diseases. The authors include: Sanjaa Bolortsetseg, Shiilegdamba Enkhtuvshin, Wendy Weisman, Amanda Fine, Angela Yang, and Damien Joly of the Wildlife Conservation Society; and D. Nyamsuren of the Dornod Aimag Veterinary Laboratory, Choibalsan, Dornod Province, Mongolia.
The Mongolian gazelle is a medium-sized antelope with a heart-shaped patch of white fur on its rump. The species gathers in vast migratory herds across Mongolia's Eastern Steppe, considered the largest intact temperate grassland in the world. The gazelle is under pressure from a variety of threats, particularly exploration for oil, gas, and minerals.
The research culminates a decade-long effort to examine the potential role of the gazelles in FMD ecology. In the recently published study (undertaken between 2005-2008), the research team collected blood samples from 36 gazelle calves and 57 adult gazelles in order to determine the prevalence of antibodies to the foot-and-mouth virus (FMDV). The team also collected samples from domestic animals kept in areas frequented by gazelles, including 138 sheep, 140 goats, 139 Bactrian camels, and 138 cattle for comparison.
The authors found that the patterns of FMDV antibody prevalence in gazelle populations reflect the dynamics of FMD in livestock across the Eastern Steppe of Mongolia. During 1998-99 (outbreak free years in livestock), researchers detected no antibodies in gazelles; conversely, during a FMD outbreak in livestock in 2001, researchers detected a 67 percent prevalence rate in gazelles. The recently published study examines the following outbreak free periods, during which the team noted a declining prevalence in FMDV antibodies in the gazelle population. Based on these observations, the authors conclude that the Mongolian gazelle population is not a reservoir for FMDV on the Eastern Steppe of Mongolia, but rather, the virus enters the gazelle population after spillover from livestock during sporadic outbreaks.
"The successful control of foot-and-mouth disease on the Eastern Steppe will require a program that focuses on livestock populations and entails health monitoring and vaccinations of domestic animals when needed," said WCS veterinary epidemiologist and co-author Shiilegdamba Enkhtuvshin.
John Delaney | EurekAlert!
Road access for all would be costly, but not so much for the climate
10.07.2020 | Potsdam-Institut für Klimafolgenforschung
Innovative grilling technique improves air quality
01.07.2020 | Fraunhofer Institute for Building Physics IBP
New insight into the spin behavior in an exotic state of matter puts us closer to next-generation spintronic devices
Aside from the deep understanding of the natural world that quantum physics theory offers, scientists worldwide are working tirelessly to bring forth a...
Kiel physics team observed extremely fast electronic changes in real time in a special material class
In physics, they are currently the subject of intensive research; in electronics, they could enable completely new functions. So-called topological materials...
Solar cells based on perovskite compounds could soon make electricity generation from sunlight even more efficient and cheaper. The laboratory efficiency of these perovskite solar cells already exceeds that of the well-known silicon solar cells. An international team led by Stefan Weber from the Max Planck Institute for Polymer Research (MPI-P) in Mainz has found microscopic structures in perovskite crystals that can guide the charge transport in the solar cell. Clever alignment of these "electron highways" could make perovskite solar cells even more powerful.
Solar cells convert sunlight into electricity. During this process, the electrons of the material inside the cell absorb the energy of the light....
Empa researchers have succeeded in applying aerogels to microelectronics: Aerogels based on cellulose nanofibers can effectively shield electromagnetic radiation over a wide frequency range – and they are unrivalled in terms of weight.
Electric motors and electronic devices generate electromagnetic fields that sometimes have to be shielded in order not to affect neighboring electronic...
A promising operating mode for the plasma of a future power plant has been developed at the ASDEX Upgrade fusion device at Max Planck Institute for Plasma...
07.07.2020 | Event News
02.07.2020 | Event News
19.05.2020 | Event News
10.07.2020 | Materials Sciences
10.07.2020 | Life Sciences
10.07.2020 | Materials Sciences