Featured Research

from universities, journals, and other organizations

Avian Bacterium More Dangerous Than Believed

Date:
July 15, 2009
Source:
USDA/Agricultural Research Service
Summary:
Bordetella hinzii just may be the Eddie Haskell of avian bacteria. Like the notoriously sneaky character from the iconic 1950s television show "Leave It to Beaver," B. hinzii has been causing trouble and dodging the blame.

ARS scientists have discovered that some strains of the bacteria Bordetella hinzii, previously thought to be nonpathogenic in poultry, can cause disease in turkeys.
Credit: Scott Bauer

Bordetella hinzii just may be the Eddie Haskell of avian bacteria. Like the notoriously sneaky character from the iconic 1950s television show "Leave It to Beaver," B. hinzii has been causing trouble and dodging the blame.

Until recently, B. hinzii was believed to be nonpathogenic in poultry. But Agricultural Research Service (ARS) scientists have shown that the bacterium caused severe disease in turkeys that was attributed to another Bordetella species.

B. avium is a pathogenic bacterium that causes upper respiratory disease in poultry and wild birds. It is very similar to B. hinzii, and the two species are difficult to distinguish without using highly specific, DNA-based tests.

Scientists at the ARS National Animal Disease Center (NADC) in Ames, Iowa, used these tests to examine several Bordetella isolates, including some that had caused 100 percent morbidity in turkey poults. Although the isolates had been labeled as B. avium, the scientists found that they were actually B. hinzii, flouting conventional wisdom that the bacterium could not cause disease in poultry.

B. hinzii has been found in poultry with respiratory disease, but was believed to be nonpathogenic because previous attempts to cause disease in chickens and turkeys with the bacterium have failed.

To test the bacterium's pathogenicity, NADC microbiologist Karen Register and veterinary medical officer Robert Kunkle selected six genetically distinct strains of B. hinzii and attempted to infect turkeys with them. Four of the strains were able to grow and persist in the trachea and also caused clinical disease. The strains varied in severity, although none demonstrated 100 percent morbidity.

This study showed for the first time that some strains of B. hinzii can cause disease in turkeys. The results of the study were published in the March 2009 issue of Avian Diseases.

In a related study with chickens, no birds developed clinical disease, suggesting that the pathogenicity of B. hinzii does not extend to chickens.

Now, NADC scientists are examining how the disease-causing strains of the bacterium differ. They are also working to identify virulence factors that influence disease development in turkey poults.


Story Source:

The above story is based on materials provided by USDA/Agricultural Research Service. Note: Materials may be edited for content and length.


Cite This Page:

USDA/Agricultural Research Service. "Avian Bacterium More Dangerous Than Believed." ScienceDaily. ScienceDaily, 15 July 2009. <www.sciencedaily.com/releases/2009/07/090705145642.htm>.
USDA/Agricultural Research Service. (2009, July 15). Avian Bacterium More Dangerous Than Believed. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2009/07/090705145642.htm
USDA/Agricultural Research Service. "Avian Bacterium More Dangerous Than Believed." ScienceDaily. www.sciencedaily.com/releases/2009/07/090705145642.htm (accessed July 31, 2014).

Share This




More Plants & Animals News

Thursday, July 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Visitors Feel Part of the Pack at Wolf Preserve

Visitors Feel Part of the Pack at Wolf Preserve

AP (July 31, 2014) — Seacrest Wolf Preserve on the northern Florida panhandle allows more than 10,000 visitors each year to get up close and personal with Arctic and British Columbian Wolves. (July 31) Video provided by AP
Powered by NewsLook.com
Florida Panther Rebound Upsets Ranchers

Florida Panther Rebound Upsets Ranchers

AP (July 31, 2014) — With Florida's panther population rebounding, some ranchers complain the protected predators are once again killing their calves. (July 31) Video provided by AP
Powered by NewsLook.com
Dangerous Bacteria Kills One in Florida

Dangerous Bacteria Kills One in Florida

AP (July 31, 2014) — Sarasota County, Florida health officials have issued a warning against eating raw oysters and exposing open wounds to coastal and inland waters after a dangerous bacteria killed one person and made another sick. (July 31) Video provided by AP
Powered by NewsLook.com
Raw: Thousands Flocking to German Crop Circle

Raw: Thousands Flocking to German Crop Circle

AP (July 30, 2014) — Thousands of people are trekking to a Bavarian farmer's field to check out a mysterious set of crop circles. (July 30) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



    Save/Print:
    Share:  

    Free Subscriptions


    Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

    Get Social & Mobile


    Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

    Have Feedback?


    Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
    Mobile iPhone Android Web
    Follow Facebook Twitter Google+
    Subscribe RSS Feeds Email Newsletters
    Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins