Thursday, June 15, 2006

Scientists "Go Ballistic"Against Brucellosis

Agricultural Research Service (ARS) scientists in Ames, Iowa, have been shooting at bison.No, they're not trying to harm the animals.

Instead, they're trying to protect them--as well as livestock--against a dangerous and costly disease, by firing vaccine-filled projectiles at close range into the bisons' muscle tissues.

The activity is part of testing ballistic approaches to vaccinating wildlife against brucellosis, an infectious disease of both animals and humans.

Veterinary medical officer Steven Olsen of the ARS National Animal Disease Center (NADC) in Ames, with colleagues at Colorado State University in Fort Collins, are seeking better ways to remotely inject free-ranging bison with RB51, the most effective vaccine available against brucellosis in cattle.

Brucellosis is a bacterial infection that in animals induces abortions, decreases fertility and reduces milk production. The bacteria can also be transmitted to humans--through contact with infected animals or consumption of unpasteurized dairy products--and cause undulant fever, an affliction characterized by severe flulike symptoms.

Brucellosis has been nearly eradicated in this country, mostly through cooperative federal and state programs begun in 1934. But outbreaks among wildlife have concerned cattle producers because cattle can get the disease through close contact with infected animals.

In this latest work, the scientists tested a new version of a biodegradable projectile developed by Solidtech Animal Health Inc., of Newcastle, Okla.They also developed a new way of preparing the vaccine pellet.

With this new method--developed at Colorado State and tested at NADC--RB51 is placed into a gel rather than into a compressed pellet. According to Olsen, the gel protects the live bacteria in the vaccine.This work was described earlier this year in the publication Vaccine.

www.ars.usda.gov/is/pr
http://www.ars.usda.gov/is/AR/archive/jun06/cattle0606.htm

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AGRI-INFO/JUNE 15, 2006


TITLE: SCIENTISTS GO BALLISTIC AGAINST BRUCELLOSIS

ALAM BA NINYO NA GUMAGAMIT NG BARIL ANG MGA SIYENTISTA PARA MABAKUNAHAN AT BIGYAN NG PROTEKSIYON ANG MGA GATASANG HAYOP LABAN SA SAKIT NA BRUCELLOSIS.

SA KATUNAYAN AY SINUBOK NA NG MGA EKSPERTO ANG GANITONG PAMAMARAAN SA AMES, IOWA NG MGA SIYENTISTA NG AGRICULTURAL RESEARCH SERVICE NG USDA SA MGA HAYOP NA TINAGURIANG BISON.

TINESTING NG MGA EKSPERTO ANG GANITONG PAMAMARAN KUNG EPEKTIBO DIN ITO SA MGA WILD ANIMAL PARA BIGYAN NG PROTEKSIYON LABAN SA BRUCELLOSIS, ISANG INFECTIOUS DISEASE NA MAAARING TUMAMA HINDI LAMANG SA HAYOP KUNDI MAGING SA TAO.

AYON KAY VETERINARY MEDICAL OFFICER STEVEN OLSEN NG ARS NATIONAL ANIMAL DISEASE CENTER NG AMES AT KANYANG MGA KASAMAHAN SA COLORADO STATE UNIVERSITY NG FORT COLLINS, BAHAGI ITO NG KANILANG HAKBANG NA ISAKATUPARAN ANG REMOTE INJECTION NG FREE-RANGING ANIMALS TULAD NG BISON.

AT GINAMIT DITO ANG RB51, ANG ITINUTURING NA PINAKAMABISANG BAKUNA NA SIYANG AVAILABLE NGAYON LABAN SA BRUCELLOSIS SA MGA BAKA.

ANG BRUCELLOSIS, AY ISANG BACTERIAL INFECTION KUNG SAAN NAGIGING SANHI NG ABORTION, BUMABABANG FERTILITY AT KABAWASAN SA PRODUKSIYON NG GATAS.

ANG NATURANG BAKTERYA AY MAAARI DING MALIPAT SA TAO SA PAMAMAGITAN NG DIRECT CONTACT SA MGA INFECTED ANIMAL O KAYA AY PAG-INOM NG UNPASTEURIZED DAIRY PRODUCTS TULAD NG GATAS.

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