Parvos is a highly contagious infectious disease caused by parvovirus, with a high mortality rate, and is susceptible to puppies aged 3-6 months, mainly divided into two categories: hemorrhagic enteritis type and myocarditis type.

1. Hemorrhagic enteritis type: clinically more common, mainly manifested as dry nasal scope, depressed spirit, decreased or abandoned appetite, vomiting and diarrhea, later development of blood in the stool, with a fishy smell, and finally dehydration and death.

2. Myocarditis type: more common in puppies around 1 month old, mainly manifested as dyspnea, vomiting and diarrhea, often due to sudden death due to heart failure.

For highly contagious infectious diseases such as parvo, it is more common in immunized or unimmunized dogs, so prevention is more important than cure. Therefore, timely immunization of dogs at the right age and in accordance with the appropriate immunization schedule can greatly reduce the risk of infection of the disease. At present, the four joints, Wei Jia five, six and Wei Jia on the market all have the role of preventing dogs.

Regarding the immunization schedule for pets: puppies can be vaccinated against infectious diseases as soon as they reach the age of 45 days.

In the first year, the injections should be given 3 times in a row, with an interval of about 20-21 days. Thereafter, the booster is given at regular intervals every year, and the specific time is determined by the time of the last injection in the first year of immunization.

At the same time, dogs can only be vaccinated with rabies vaccine when they are more than 3 months old, and they can choose to be injected at the same time as any shot of the vaccine to prevent infectious diseases, and the two do not conflict. In the future, it will also need to be boosted every year.

There are two phenotypes in bed:

The hemorrhagic enteritis form is characterized by severe vomiting, hemorrhagic enteritis, and marked leukopenia;

Enteritis type: the incubation period of natural infection is 7 days ~ 14 days, the initial manifestation of fever, body temperature can reach more than 40 °C, depression, no food, vomiting. Initial vomit is undigested food and white foam (stomach acid), followed by mucus, yellowish-green liquid. Diarrhea began one day after the onset of illness. At the beginning of the disease, the feces are thin paste or semi-formed, and there is a certain fishy odor. As the disease progresses, the stool becomes dark green or yellow jelly-like. Subsequently, the stool is ketchup-colored or coffee-colored, smelly, irregular frequency of bowel movements, and symptoms of tenesmus. After bloody stool, the sick dog is manifested as sunken eyes, dry nasal environment, general weakness, significant weight loss, accompanied by eye conjunctiva, pale oral mucosa, severe anemia symptoms, if the disease is not treated in time, it can cause toxin absorption and poisoning of intestinal contents, until shock, death. Occasionally, dogs may have the following conditions: the feces are clear, watery, blood-streaked, and have a fishy smell, or the stools are white, loose stools.

The myocarditic form is characterized by sudden death.

Myocarditis type: more common in puppies about 40 days old, sick dogs have no obvious clinical symptoms, some suddenly have difficulty breathing, heart failure, and death in a short time; Some sick dogs died after mild diarrhea.

Canine parvovirus myocarditis is caused by canine parvovirus attacking the cardiac myocytes of dogs, which can destroy the cardiac cells of dogs in a short period of time. This is followed by wheezing, cyanosis of the oral mucous membranes and skin, and sometimes sudden failure and death, which are the only symptoms of the disease in puppies. Tolerant puppies can die from the disease weeks to months after infection due to permanent myocardial damage. It is more common in puppies, and puppies also have a 10% chance of developing canine parvovirus that attacks both the dog's intestinal epithelial cells and cardiomyocytes.

Parvovirus genus (Pa

vovi

us), the virion has no envelope, CPV has strong resistance to the outside world, is resistant to alcohol, **, chloroform, and has a certain tolerance to temperature. 65 °C for 30 seconds without losing its infectivity, and long-term storage at low temperatures has no significant effect on its infectivity. It survived at 4 °C~10 °C for 6 months, 37 °C for 2 weeks, 56 °C for 24 hours, 80 °C for 15 seconds, and stored at room temperature for 3 months, and the infectivity only decreased slightly, and it could survive in feces for months to years. The most effective disinfectants for CPV are formalin, β-propionolactone, sodium hypochlorite, oxidants, etc. In addition, ultraviolet light can also inactivate it.

How to prevent parvo in dogs

First, you should be immunized. The clinical clinical detection of domestic dog hexaical vaccine is low, it is recommended to inject imported canine double vaccine, puppies can be injected in a healthy state for more than 45 days, according to different brands, they need to be injected with one or two injections. The dual vaccine is canine parvovirus and canine distemper vaccine.

Second, isolate from sick dogs and disinfect dog supplies thoroughly.

Third, use drugs appropriately, do not abuse antibiotics and other drugs how to treat dogs.

During the onset of parvo, the dog has severe diarrhea, and the excrement changes from yellow-green to coffee-colored, or ketchup-colored bloody stool with a special fishy odor. During the dog's illness, the owner needs to take care of it, have confidence in it, and encourage it more... Dogs are human, as long as there is a breath of air, it will insist!

1. During the treatment, it is necessary to achieve absolute fasting from water and fasting (the hospital will give the dog infusion to replenish water and physical strength, don't worry).

2. You need to go to the pet hospital every day for infusion treatment. Take care to keep your dog warm.

3. During this period, the dog is basically unenergetic and sleepy. It is a normal phenomenon in treatment.

4. The first three days are the most important, they belong to the dangerous period, and there is basically no danger to life after surviving... Continue to cooperate with treatment.

5. Pay attention to the sanitation and disinfection of the kennel and the dog's frequent activities, and the hospital should have a disinfectant specifically for the virus.

The hemorrhagic enteritis type is more common in puppies aged 2~6 months, and the incubation period is 1~2 weeks. Sick dogs generally have a sudden onset, which begins to manifest as mental depression, depressing, dry nasal mirror, flushing in the early stage of the conjugatory membrane, pale in the later stage, vomiting, and vomit is first food, followed by mucus; Later, the vomit is yellow-green or with blood, and some also retch, and soon after vomiting, squirt-like diarrhea appears, starting yellow or gray-yellow, with a large amount of mucus or pseudo-membrane, followed by tomato sauce or sorghum rice soup-like feces, with a particularly unpleasant fishy odor. Sick dogs rapidly emaciate and become dehydrated, their eye sockets collapse, skin elasticity decreases, and capillary refilling time is prolonged. At the beginning of the disease, the desire to drink and the intestinal sound are enhanced, and the desire to drink and the intestinal sound are abolished in the middle and late stages. The body temperature of most sick dogs rises, generally around 40 degrees, and some sick dogs never rise at all. Sick dogs often die about 3 days after diarrhea due to dehydration, electrolyte imbalances, and acidosis.

The myocarditis type is more common in puppies under 2 months of age before and after weaning. The sick dog suddenly became ill, the spirit was still good at the beginning of the illness, mild diarrhea appeared, some vomited, the sick dog weakened rapidly, had difficulty breathing, and the visible mucous membrane was pale; Some also have cyanosis, swaying walking, and even difficulty standing, high mental depression, lack of eating, normal or elevated body temperature, and intracardiac murmur on auscultation of the heart area; Some lungs have a warm rales on auscultation. Sick dogs often die suddenly due to acute heart failure.

Parvovirus is the number one disease in puppies, with a very small recovery rate, second only to canine warmth. It is said that puppies carry the virus, and it is not impossible to get it without contact with other dogs. It is a truth that the body's resistance will decline and it will catch a cold. Healthy puppies (other than those that have been nursed) can also be transmitted by licking and eating the saliva of sick dogs when they come into contact with a small dog.

Remember that puppies should only be injected after weaning, and the best time is on the 7th day of weaning. Lactating puppies will use their mother's milk to obtain maternal antibodies to improve their immunity, and vaccination when they are not weaned will not improve the puppy's immunity, but will reduce maternal antibodies. Dogs will have runny noses, watery eyes, and noses that are not particularly wet and very dry after contracting parvovirus. In the early stage, some dogs will have loss of appetite (a few dogs will have a good appetite, and it will also be the early stage of the disease), diarrhea, vomiting and other symptoms. Later in the process, blood is drawn (blood is incorporated into the stool, such as one or two drops of blood may just be enteritis), leading to death