High-Tech Tool To Diagnose Rainrot

News — Wed, 28 Oct 2020 13:08:13 +0000

Rainrot is a common, painful skin condition affecting horses that are exposed to rainfall for an extended period of time. Caused by an opportunistic bacterium, a horse exposed to wet, humid conditions can rapidly develop a crusting infection that causes tight scabs in a drip pattern down his back, rump and flanks. Rainrot can also show up on areas of the horse that are in contact with wet grass, like on the lower legs and muzzle.

Though many horses can be treated for rainrot with over-the-counter products, older horses and those with comprised immune systems tend to get more-severe infections that may require veterinary intervention. When dealing with a severe case, a vet will generally sample the crusts and examine it under a microscope, looking for the specific bacteria that causes rainrot.

A New option available to veterinarians is the use of polymerase chain reaction (PCR) technology. This DNA-amplification technique is commonly used in gene sequencing and forensic analysis, as well as for diagnosing infectious diseases. Extremely sensitive, PCR is a routine diagnostic test for most labs and it's affordable: The test isn't as expensive as most cytology tests.

Once run, it can differentiate between rainrot and other skin conditions, which will assist in determining a course of treatment, shortening the trial-and-error efforts sometimes needed to assist with healing.

Equine Fungal Infections An Emerging Issue

News — Tue, 21 Jul 2020 14:08:26 +0000

Fungal infections of the skin are common in animals worldwide; these infections can be transmitted to other animals or humans and cause skin infections and other, more-generalized infections.

Drs. Bożena Dworecka-Kaszak, Małgorzata Biegańska and Iwona Dąbrowska from the Warsaw University of Life Sciences in Poland took samples from a host of animals to determine what organisms were causing the fungal infections. The team used 5,335 hair, skin scraping, skin and ear swab samples over a 10-year period to look for different organisms. These samples came from 4,150 dogs, 689 cats, 274 horses, 88 rodents, 11 birds and 123 other pets. Of those, 2,399 were from animals that were diagnosed with dermatitis.

The fungi that was most-frequently isolated from skin lesions were Malassezia pachydermatis (29.14 percent), Candida yeasts (27.07 percent), and dermatophytes (23.5 percent). Alternaria molds alone were found in 127 samples. These molds are plentiful in soil, air and water, as well as on the surface of human and animal skin.

Infections from molds like Alternaria have become an emerging issue for equine veterinarians. Concern is being raised that this fungus may mechanically damage the tissue surrounding the infection. The conclude that this fungi should be considered as a cause of skin infections based on the number of skin samples that showed Alternaria as the only infection-causing organism.

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High-Tech Tool To Diagnose Rainrot

Equine Fungal Infections An Emerging Issue