Focus on Canine Heartworm Disease
نویسنده
چکیده
The ingested microfilariae develop into the infective third-stage larvae (L3) after several molts. These L3 migrate to the mosquito head and mouthparts where they are deposited in hemolymph onto mammalian skin during subsequent blood meals. After the deposited L3 enter the host through the mosquito bite wound, they molt to fourth-stage larvae (L4). The L4 then migrate through the tissues toward the heart.
منابع مشابه
Canine heartworm disease in Porto Velho: first record, distribution map and occurrence of positive mosquitoes.
The aim of this study was to make the first report on canine heartworm disease in the state of Rondônia and confirm its transmission in this state. Blood samples were randomly collected from 727 dogs in the city of Porto Velho. The samples were analyzed to search for microfilariae and circulating antigens, using three different techniques: optical microscopy on thick blood smears stained with G...
متن کاملOccult Dirofilariosis in Dogs of North Eastern Region in India.
BACKGROUND The North Eastern Region in India is endemic for canine heartworm disease but in clinics accurate diagnosis is some times difficult. The aim of the present study was to determine the prevalence of occult infections for heartworm disease in canine in two geographical regions of North Eastern India. METHODS A total of 782 numbers of three categories of dogs namely, working dogs of mi...
متن کاملA study on Dirofilaria immitis in healthy urban dogs from Ahvaz, Iran
Heartworm infection is one of the most important parasitic diseases in dogs and an increasing number of cases are reported each year by necropsy in Ahvaz. This study was conducted to determine the prevalence of Dirofilaria immitisinfection and to investigate the risk factors related to heartworm disease in urban dogs in this area. Blood samples were collected from 100 dogs from Feb 2007 to Feb ...
متن کاملCanine and feline dirofilariasis: life cycle, pathophysiology, and diagnosis.
Infection with the intravascular parasite Dirofilaria immitis is an increasingly recognized problem in domestic dogs and cats. Heartworm infection is preventable; however, once an animal is infected, heartworm disease and potentially life-threatening complications can develop. An understanding of the heartworm life cycle and transmission season, the limitations of testing methods, and the clini...
متن کاملSurvey of canine Dirofilaria immitis infection in Caspian provinces of Iran
Between July and August 2009, a total of two hundred crossbreed dogs in three contiguous littoralprovinces of Guilan, Mazandaran and Golestan were sampled. Circulating antigens and/or microfilariae ofDirofilaria immitis were found in 25.5% of dogs in the whole studied area. The highest infection rate wasfound in Guilan (51.42%), followed by Golestan and Mazandaran provinces (15.38% and 7.69%, r...
متن کامل