Main symptoms of toxoplasmosis in dogs

       Warm blooded vertebrates infect Toxoplasma gondii by ingestion of one of the three forms of pathogens or transplacental infection. Most cats have no habit of eating faeces. Most of the cats are infected by Toxoplasma gondii merozoites after eating meat. Oocysts were excreted by feces from the 3rd to 21st day after infection. Spore forming oocysts can survive for months to years in the environment and are resistant to most disinfectants. The infected germplasms may live in the host for life.

       What symptoms do animals have after infection?

       Toxoplasma gondii is mainly invisible infection in dogs and cats

       The main symptoms of dogs are fever, cough, dyspnea, anorexia, mental depression, eye and nasal discharge, vomiting, pale mucosa, dyskinesia, premature birth and abortion.

       Toxoplasmosis is most likely to be infected by ingestion of sporulated oocysts or cysts, or through placenta. In order to prevent toxoplasmosis, eating undercooked meat or taking sporulated oocysts should be avoided. People rarely get toxoplasmosis gondii through contact with cats. Toxoplasma gondii infection mainly occurs in the faeces of cats.

       There are several points in the prevention of Toxoplasma gondii in cats

       Do not feed undercooked meat to cats

       No cat hunting

       Clean the bedpan every day.

       Hot wash the bedpan with boiling water or pad the bedpan box

       Wear gloves when working with soil

       Fresh vegetables and fruits should be washed before eating

       Anti Toxoplasma drugs were used to treat the cat in the oocyst shedding stage.

       Toxoplasmosis in dogs is different from that in cats. Dogs do not produce Toxoplasma gondii oocysts, but they can mechanically transmit oocysts after swallowing cat feces. Dogs have Toxoplasma gondii infection stage, which can cause clinical diseases.

       Prevention of Toxoplasma canis

       Dogs can not complete the intestinal epithelial stage of Toxoplasma gondii, but can mechanically disperse oocysts after ingesting cat feces. Like other warm blooded spinal animals, dogs are infected by ingestion of sporulated oocysts or cysts. Toxoplasmosis in dogs can be prevented by banning feces and feeding only cooked meat and food.

       Therefore, as long as animal friends pay more attention, the probability of Toxoplasma gondii infection from animals is still very low.

       Human infection with Toxoplasma gondii

       It is divided into congenital toxoplasmosis and acquired toxoplasmosis.

       Pregnant women infected with Toxoplasma gondii may cause congenital toxoplasmosis. Early pregnancy infection is often accompanied by abortion, premature delivery, stillbirth, stillbirth. ***Postnatal: serious damage to the eyes and brain, hydrocephalus, cerebellar malformation, small eyeball, strabismus, mental retardation, etc.

       Eye symptoms

       Hydrocephalus

       Malformed children

       Life history of Toxoplasma gondii

       There are three infection stages in the life cycle of Toxoplasma gondii

       Channels of transmission

       The above three stages are infective to both intermediate and final hosts. They may acquire Toxoplasma gondii infection mainly through one of the following ways.

       Horizontal direction: oral administration of infectious oocysts from the environment.

       Horizontal direction: the ingested raw meat, undercooked meat or viscera of the intermediate host contains the cysts.

       Vertical direction: transplacental transmission through tachyzoites.

       Diagnosis of Toxoplasma gondii

       With the increase of domestic pets, close contact between people and pets increases the risk of human infection with Toxoplasma gondii. Therefore, the effective prevention and control of toxoplasmosis in animals and humans is particularly important.

       Result judgment

       Table 1. Interpretation significance

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       Toxoplasmosis symptoms? Most of the dogs showed recessive infection, and the infection in young and young dogs was common, and the symptoms were obvious. The symptoms of the disease are similar to canine distemper (detailed introduction) and canine infectious hepatitis. The main manifestations of the disease are temperature rise, mental fatigue, loss of appetite or extinction, cough, dyspnea, diarrhea, secretion of eyes and nose, pale or yellow staining of mucous membrane. Pregnant female dogs often have abortion, early delivery or stillbirth.

       The infection route of toxoplasmosis is: the damaged parts of digestive tract, skin and mucous membrane, a variety of insects (cockroaches, flies, lice, fleas, ticks, etc.) and earthworms, as well as poorly disinfected injection equipment, etc., can be transmitted to the fetus through the placenta during the acute infection period. After the invasion, Toxoplasma gondii mainly reached the nucleated cells of various organs through lymphatic and blood circulation, and germinated in the cytoplasm for asexual proliferation. When the proliferation is active, various forms of trophozoites appear in the infected animals, such as blood, urine, tears, saliva, * *, feces and so on. At this time, the animals show acute attack of disease. In chronic cases or some recessive infection patients without symptoms, the asexual proliferation process of Toxoplasma gondii in the body is blocked due to the influence of multiple factors in the receptor. These parasites will form cysts in some organs of the host body. Therefore, the inclusion type of Toxoplasma is a resting state of Toxoplasma gondii.

       Prevention and treatment of toxoplasmosis: sulfonamides are effective in treating toxoplasmosis. Commonly used drugs are:

       ¢Ú Compound sulfamethoxazole tablets, 70 mg / kg body weight, twice a day.

       For the cases with serious symptoms, symptomatic treatment such as rehydration, hemostasis, antidiarrheal and cooling should be taken.

       The above describes the symptoms of toxoplasmosis. Once a dog is infected, the sick dog should be isolated from other dogs as soon as possible, and the dog’s nest should be disinfected.

       This disease is a worldwide zoonotic protozoonosis, which widely exists in domestic animals and wild animals. The disease has been reported all over the country.

       The pathogen of toxoplasmosis is Toxoplasma gondii, or Toxoplasma gondii for short. Its whole development process needs two hosts. The cat is the final host of Toxoplasma gondii. In the intestinal epithelial cells of cats, schizoid proliferation and gametogenesis are similar to the development of coccidia. Finally, the oocysts are excreted from the body with cat feces. In the external environment, the oocysts proliferate and develop into infectious oocysts containing two sporangia.

       There are more than 200 species of animals, including mammals, birds, fish, reptiles and humans, which can be used as intermediate hosts. Cats can also act as intermediate hosts of Toxoplasma gondii. In the intermediate host, Toxoplasma gondii can reproduce asexually in the nucleated cells of the whole body. Animals are infected by eating infectious oocysts in cat feces or meat, viscera, exudate, excreta and milk of intermediate hosts containing Toxoplasma gondii tachyzoites or cysts. Tachyzoites can also infect the fetus through skin, mucous membrane and placenta.

       (1) Clinical symptoms: mostly asymptomatic recessive infection. Young dogs and young dogs are more common and the symptoms are more serious. Adult dogs also have fatal cases. The symptoms are similar to canine distemper and canine infectious hepatitis. The main manifestations are fever, cough, anorexia, listlessness, weakness, secretion from eyes and nose, pale mucosa, dyspnea, and even severe hemorrhagic diarrhea. A few dogs had severe vomiting, followed by paralysis and other neurological symptoms. When a pregnant female dog has miscarriage or premature birth, her pups often have symptoms such as defecation, dyspnea and dyskinesia. Blood examination, acute phase, red and white blood cells decreased, neutrophils increased. Neutropenia and monocytosis were rare. The total number of leukocytes increased in chronic cases, mainly neutrophilic leukocytosis and thrombocytopenia, but there was no bleeding tendency.

       (2) Laboratory tests: depending only on clinical symptoms, it is easy to be confused with canine distemper, especially nerve type canine distemper. Therefore, after epidemiological analysis, clinical symptoms and other comprehensive judgment, it is necessary to detect the pathogen or confirm the increase of antibody titer in serum before diagnosis.

       Toxoplasmosis is a worldwide zoonotic protozoonosis, which widely exists in domestic animals and wild animals. It has been reported in all parts of the country. Most of the acute cases occurred in puppies under 1 year old.

       1¡¢ Etiology of Toxoplasma canis

       Toxoplasma gondii is the pathogen of Toxoplasma gondii. The disease can be infected by skin and mucous membrane, and also by placenta.

       2¡¢ Clinical symptoms of Toxoplasma canis

       1. Healthy adult dogs, even if infected with Toxoplasma gondii, do not get sick, most of them are asymptomatic invisible infection.

       2. The infection was common in young dogs and young dogs, and the symptoms were more serious in adult dogs;

       3. The symptoms are similar to canine distemper and canine infectious hepatitis. The main manifestations are fever, cough, anorexia, listlessness, weakness, secretion from eyes and nose, pale mucosa, dyspnea, and even severe hemorrhagic diarrhea. A few dogs had severe vomiting, followed by paralysis and other neurological symptoms.

       4. Pregnant female dogs have miscarriage or premature birth, and their pups often have symptoms such as defecation, dyspnea and dyskinesia;

       5. In the acute phase, red and white blood cells decreased and neutrophils increased. Neutropenia and monocytosis were rare. The total number of leukocytes increased in chronic cases, mainly neutrophilic leukocytosis and thrombocytopenia, but there was no bleeding tendency.

       3¡¢ Treatment and prevention of Toxoplasma canis

       2. At ordinary times, they do not feed raw meat, and prevent dogs from preying on rodents, and prevent cat manure from polluting feed and drinking water.

       4¡¢ Special reminder

       If you have a pregnant woman at home, you’d better take your dog to check for Toxoplasma before you get pregnant. It’s safer.

       Generally speaking, ordinary anthelmintic drugs have little effect on Toxoplasma gondii, and injection treatment is better. After treatment, they will produce antibodies and will not get Toxoplasma again.

       But we also need not be too nervous, in theory, pregnant women in the early pregnancy infected with Toxoplasma gondii, will lead to fetal malformation. However, first, the probability of transmission from dog to human is very small, and secondly, even if infected with Toxoplasma gondii, the probability of fetal malformation is very small.

       It is suggested that everyone should have an examination, just for the sake of more safety for pregnant women.

       -The real value of love for dogs: not gorgeous clothes, expensive food, but knowledge!

       This disease is a worldwide zoonotic protozoonosis, which widely exists in domestic animals and wild animals. The disease has been reported all over the country.

       Pathogen and its life history

       Toxoplasma gondii is the pathogen of Toxoplasma gondii. It needs two hosts for the whole development process. The cat is the final host of Toxoplasma gondii. It carries out fission proliferation and gametogenesis in the intestinal epithelial cells of the cat, and finally forms the oocyst, which is discharged into the body with the cat feces, polluting the feed, drinking water and the surrounding environment. In the external environment, the oocyst develops into an infectious oocyst containing two sporangia through spore multiplication.

       There are more than 200 species of animals, including mammals, birds, fish, reptiles and humans, which can be used as intermediate hosts. Cats can also act as intermediate hosts of Toxoplasma gondii. In the intermediate host, Toxoplasma gondii can propagate asexually in the nucleated cells of various organs of the body and form tachyzoites or cysts.

       The animals were infected by eating the feed containing infective oocysts or the meat, viscera and milk of the intermediate host containing Toxoplasma gondii tachyzoites or cysts. Tachyzoites can also infect the fetus through skin, mucous membrane and placenta.

       Key points of diagnosis

       (1) Most of the bed symptoms were asymptomatic recessive infection. The infection was common in young dogs and young dogs, and the symptoms were serious. There were also fatal cases in adult dogs. The symptoms are similar to canine distemper and canine infectious hepatitis, mainly manifested as fever, cough, anorexia, semen fatigue, weakness, eye and nose secretions, pale mucosa, dyspnea, and even severe hemorrhagic diarrhea. A few dogs had severe vomiting, followed by paralysis and other neurological symptoms. When a pregnant female dog has miscarriage or premature birth, her pups often have symptoms such as defecation, dyspnea and dyskinesia. Blood examination: red and white blood cells decreased and neutrophils increased in acute phase. Neutropenia and monocytosis were rare. The total number of leukocytes increased in chronic cases, mainly neutrophilic leukocytosis and thrombocytopenia, but there was no bleeding tendency.

       (2) Laboratory tests based on clinical symptoms can easily be confused with canine distemper, especially neurodistemper. Therefore, after epidemiological analysis, clinical symptoms and other comprehensive judgment, it is necessary to detect pathogens or confirm the increase of antibody titer in serum before diagnosis.

       treatment

       prevention

       Do not feed raw meat, prevent dogs from predating rodents, and prevent cat feces from polluting feed and drinking water.

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