Is CANINE BRUCELLOSIS an emerging infectious disease? ~ WEST NILE VIRUS reports from CA, NE, & TX ~ RABIES reports from OR, TX, & VA ~ CDC REPORTS: ZOONOTIC DISEASE summary for week ending June 16, 2012.

Rottweiler puppies at 6 weeks. PD. Wikimedia Commons.

Global dogchannel.com: by Debra M. Eldredge, DVM – Brucellosis is a disease bandied about casually by many dog fanciers. Breeders recommend that all bitches have a negative Brucellosis test before any breedings, but often skimp on testing the stud dogs. It seems like such a routine problem. In reality, a diagnosis of brucellosis can be a kennel wipeout, not just the loss of an individual litter. Brucellosis is caused by a bacteria called Brucella canis. There are other versions of the brucella bacteria that primarily infect pigs, cattle, sheep and goats. All of the versions appear to be at least mildly infectious to other species, including humans, making this a zoonotic disease.

A dog can be infected with other versions of the brucella bacteria as well as the canine type. The bovine version of brucellosis is a reportable disease in virtually every state, but even the canine version is reportable in some states. According to the Iowa State Center for Food Security and Public Health, this bacteria has been identified in dogs with reproductive problems all over the world with the exception of New Zealand and Australia. A study from Cornell sights figures as high as 20 to 30 percent for Central/South American dogs. The same study mentions estimates of 7 to 8 percent in stray dogs in Japan and the southern United States. Another site mentions infection rates possibly as high as 8 to 10 percent of the dogs in the US.

Dr. Debra M. Eldredge

In people, blood tests indicating exposure show that as of July 2009, 67.8 percent of Oklahoma’s human residents had been exposed to brucella bacteria (probably including all the variants, not just the canine version). There have been documented cases of people contracting the canine form of brucellosis, even from the “tamer” laboratory strain, but clinical disease is not very common. The people most at risk of illness are the elderly, very young and anyone with any immunocompromising illness. Still, it makes sense for everyone to wear gloves dealing with any aftereffects of an abortion and take precautions. – For complete article see http://www.dogchannel.com/dog-magazines/dogsinreview/dogs-in-review-february-2011-health.aspx

West Nile Virus (WNV):

Ventura County

California 07/09/12 Ventura County: Five more birds have tested positive for WNV, including four found in Simi Valley and one in Thousand Oaks, county health officials said today. The five were found in the last week of June, and state test results confirmed Friday that they all had WNV, county Environmental Health Division officials said. So far this year, eight wild birds collected in Ventura County have tested positive for the virus. – See http://www.vcstar.com/news/2012/jul/09/five-more-birds-found-with-west-nile-in-ventura/

Nebraska 07/09/12 ne.gov: News Release – Mosquitoes in Adams and Sheridan counties tested positive for WNV and so have birds in Madison and Phelps counties according to the Nebraska Health and Human Services. – See http://dhhs.ne.gov/Pages/Newsroom_Newsreleases_2012_July_WNV.aspx

Tarrant County

Texas 07/09/12 Grapevine, Tarrant County: Mosquitoes carrying the WNV have been confirmed in two parts of the city. Positive results were detected in mosquitoes caught in the Lakeview Drive/Kimball Road area of north Grapevine and in the WT Parr and Hall-Johnson roads area in the south. – See http://www.star-telegram.com/2012/07/09/4087657/mosquitoes-with-west-nile-found.html

Rabies:

Oregon 07/09/12 Corvallis, Benton County: by Lynne Terry – A bat that bit an unvaccinated dog on Friday has tested positive for rabies. The dog found a large brown bat flopping around in thick vegetation and the owner managed to get the bat out of the dog’s mouth without being bitten herself. – See http://www.oregonlive.com/pacific-northwest-news/index.ssf/2012/07/rabid_bat_bites_unvaccinated_d.html

Texas 07/09/12 austintexas.gov: News Release – The Austin/Travis County Health and Human Services Department is working to identify an adult female who came in contact with a bat that has tested positive for rabies. The incident occurred on July 3, 2012 around 10:15 p.m. under the Congress Street Bridge at Lady Bird Lake. The female was reported to be wearing flip flops and an observer noted the bat came in contact with the woman’s feet. Signs were posted in and around that location on Friday, July 6 when lab results became available however; no calls have been received at this time by the city’s health department.  If anyone has information, please contact our office at 512-972-5555. – See http://www.austintexas.gov/news/possible-human-exposure-rabies

Virginia 07/09/12 Pittsylvania County: A raccoon in the Hodnett’s Road area east of Gretna and a fox in the Rover Ridge area of Danville have become the most recent confirmed cases of rabies in the Dan River Region, according to a news release from the Virginia Health Department.  – See http://www2.godanriver.com/news/2012/jul/09/two-more-confirmed-cases-rabies-pittsylvania-count-ar-2044257/

CDC Reports:

CDC MMWR Summary for Week ending June 16, 2012:

Published June 22, 2012/ 61(24); ND-325-ND-338

Anaplasmosis . . . 3 . . . Maine, New York, Tennessee,

Ehrlichiosis . . . 9 . . . Arkansas, Ohio, Tennessee (2), Virginia (5),

Giardiasis . . . 64 . . . Alabama, Alaska, Arkansas (3), Florida (14), Maine (3), Maryland (5), Montana, Nevada  (3), New Mexico, New York (5), Ohio (7), Oregon, Pennsylvania (5), South Carolina (3), Utah (2), Vermont, (2), Virginia (2), Washington (5),

HME/HGE Undetermined . . . 1 . . . Indiana, 

Lyme Disease . . .  160. . .  Connecticut, Florida, Maryland (24), Nebraska, New Jersey (2), New York (44), Ohio, Pennsylvania (61), Tennessee, Vermont (4), Virginia (18), Washington (2),

Rabies (Animal) . . . 25. . . New York (6), Ohio (2), Texas (17),

Spotted Fever including Rocky Mountain Spotted Fever (Confirmed) . . . 2. . . Georgia, Virginia,

Spotted Fever including Rocky Mountain Spotted Fever (Probable) . . . 104 . . . Alabama (5), Arkansas (9), Florida, Indiana (2), Missouri, North Carolina (49), Tennessee (21), Texas, Virginia (15),

West Nile Virus (Neuroinvasive) . . . 1 . . . Texas,

West Nile Virus (Nonneuroinvasive)… 1 … California.

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