teenagemutantninjaturtlesthings.tumblr.com

[ArthurPearp]

The onset and severity of illness in the dog is mainly a manifestation of the number of adult heartworms present, the age of the infection and the level of activity of the dog. Dogs with higher numbers of worms are generally found to have more severe heart and lung disease changes. Until the amount of mature heartworms exceeds 50 at a 25-kg dog (approximately 55 pounds), almost every one of the heartworms live in the reduced caudal pulmonary arteries (the arteries of the lower lung lobes). Greater numbers of heartworms result in their own presence in the ideal chambers of the heart. In such infections, the most frequent early pathological changes caused by heartworms are the result of inflammatory processes that occur in and around the arteries of the lower part of the lungs in response to the presence of heartworms. Later, the center may enlarge and become diminished due to an increased workload and congestive heart failure may occur. An extremely active puppy (e.g., working puppy ) is far more likely to develop severe disease with a comparatively few of heartworms than an inactive one (e.g., a lap dog or couch potato). Occasionally, a dog having a high number of heartworms may not only have worms in the heart, but also from the caudal vena cava (large main vein of the lower body) between the liver and the heart. If the heartworms are not removed surgically, this syndrome causes abrupt collapse and death within two to three days.Canine heartworm disease is widely distributed throughout the United States. Heartworm infection was found in dogs native to all 50 states. All dogs, irrespective of their age, sex, or habitat, are susceptible to heartworm disease. The highest infection rates (up to 45 percent ) in dogs (not preserved on heartworm preventative ) are observed within 150 miles of the Atlantic and Gulf coasts from the Gulf of Mexico into New Jersey and along the Mississippi River and its major tributaries. Other regions of the United States might have lower prevalence rates (5% or less) of canine heartworm disease, though some regions have environmental, mosquito population and dog population factors that allow a higher neighborhood incidence of heartworm infection. Areas where heartworm disease is common possess diagnosed infections in puppies as young as one year of age, with the majority of areas diagnosing infections primarily between the ages of three and eight years. Even though there are differences in frequency of disease for a variety of groups of dogs, all dogs in all regions should be considered at risk, put on prevention programs and also often examined by a veterinarian.
Source:
[url=https://teenagemutantninjaturtlesthings.tumblr.com/]teenagemutantninjaturtlesthings.tumblr.com[/url]
[url]https://talkingpictures.tumblr.com/[/url]