investigating prevalence and predisposing factors for demodicosis in dogs: a review

Understanding canine demodicosis s prevalence and predisposing factors is crucial for veterinarians to identify high-risk dogs and implement appropriate prevention and management strategies. the authors reviewed the literature available until 2023. the prevalence of canine demodicosis can vary depending on several factors including geographical location, dog age, breed, and immune system status. in the united states, the prevalence is estimated to be around 2-5% of the dog population. in some parts of the world, such as south america and asia, the prevalence can be as high as 10-20%. studies have shown a prevalence ranging from 10% to 20% in some areas of china. prevalence estimates in india range from 8% to 15% of the dog population. some studies have reported even higher rates, up to 20-25%, in certain regions or specific dog populations. the prevalence of canine demodicosis in japan is estimated to be around 5-10% on average. however, in some areas, the prevalence has been reported to be as high as 15-20%, particularly in certain breeds. in southeast asia prevalence rates range from 10% to 20%. however, the prevalence can reach 25-30%, especially in stray or community dog populations. the higher prevalence in asia is often attributed to warmer and more humid climates, differences in dog management and veterinary care practices, and genetic predisposition in certain asian dog breeds. a study conducted in tabriz (iran) from 2021 to 2023 found that demodex in 5% of the population (200 pet dogs). the main predisposing factors for canine demodicosis include age, breed, immunosuppression, stress, maternal transfer, geographical location, skin trauma or inflammation, and intestinal parasites. overall, a thorough understanding of demodicosis is crucial for veterinarians to accurately diagnose, treat, and manage this common skin condition in their canine and feline patients, as well as to address any underlying health concerns and minimize the risk of zoonotic transmission.