Cat nasal bronchitis is also called viral rhinotracheitis. Because it is contagious, it is also called feline infectious rhinobronchitis. It has typical symptoms of respiratory diseases, and the infection rate for young cats is very high and can lead to death. The rate is also very high, especially if one kitten in a cat farm is infected, the entire cat farm will be infected with the virus. Customers who come to buy cats will buy the infected cats, causing the virus to spread further outside, so domestic cats will also infected with this virus. Therefore, the prevention and treatment of nasal branch in cats is particularly important.

FHV-1 is widely distributed in the world. The disease is mainly transmitted through contact. The virus is excreted through nose, eyes, and oral secretions. Sick cats and healthy cats pass through the respiratory tract through direct nose-to-nose contact and inhalation of virus-containing droplets. Infect. In still air, droplet transmission can occur within 1 meter. Cats that recover naturally can carry and shed viruses for a long time and become dangerous sources of infection. Cats in the early stages of the disease can detoxify through secretions for up to 14 days.

1. Symptoms

The main areas where the virus grows and invades are the nose, sinuses, eyes, palate, tongue, throat, tonsils and upper trachea. Cats will develop severe sneezing symptoms 1 to 3 days after being infected, and then gradually become lethargic, have a fever, have a severe loss of appetite, and even stop eating. The nose will initially run clear, like when a person has a cold. The same, and then gradually the nasal discharge becomes thicker and thicker like snot; tears flow, and the conjunctiva (i.e., the white of the eye) becomes red and swollen, so swollen that the eyes cannot be opened. Some cats may also develop corneal ulcers; some cats may develop corneal ulcers. Drooling and ulcers appear in the mouth; as the disease progresses, cough and even pneumonia symptoms may occur. These symptoms usually last 7 to 14 days. The severity of the symptoms is usually related to the number of viruses infecting the cat. The greater the number, the more obvious and severe the symptoms are. In addition, it is also related to the following factors: the age of the cat, the age of the cat, and the severity of the symptoms. Younger or older cats are more susceptible to virus attacks, and the more serious their condition will be; nutrition, the better the nutrition, the better the resistance, and the stronger the ability to fight the virus; stress, the resistance of cats in a stressed state The strength of the cat will decrease, so the sick cat must be given a quiet and comfortable environment; if it is complicated by other diseases, when the cat suffers from other diseases at the same time, its resistance to the virus will be relatively weak, so the symptoms will be more serious.

2. Diagnosis

Anatomy: The nasal cavity is filled with purulent secretions, and the nasal mucosa is congested and edematous. There was purulent secretion in the throat, the tracheal mucosa was slightly congested, and there was a large amount of purulent secretion on the surface. The lungs changed from pink to red, and there were varying degrees of congestion and necrosis in the left and right lungs, as well as a small amount of bleeding. The liver was dark purple with a small amount of bleeding spots and a necrotic spot the size of a pinhead. There was punctate bleeding in the spleen. The kidneys were mildly edematous and the bladder was filled with light yellow urine. ?

Laboratory diagnosis: Suspect viral rhinotracheitis based on symptoms, and then collect blood samples from sick catsPCR tests were performed on venous blood and eye and nasal secretions, and the results were strongly positive for rhinotracheitis virus.

3. Treatment

When kittens suffer from this disease, the systemic symptoms are more severe, generally manifesting as severe dehydration, fever, inability to eat, conjunctivitis and rhinotracheitis. The principle of treatment is to control secondary infection, and supportive therapy with infusion is extremely important. It is necessary not only to replenish sufficient water and ions, but also to replenish energy and nutrients. In addition, there is a kind of arginine called "Mao'an" that can very well hinder virus replication in the early stages of the disease and has a certain curative effect. Kittens have a long course of disease after getting sick, and it usually takes about 1 month to recover. For the treatment of conjunctivitis, if there is no corneal ulcer, the effect of using antibiotic eye drops containing hormones will be obvious. For severe cases of conjunctival edema, hypertonic glucose solution can be dropped into the eye to reduce swelling. Even after the symptoms have basically improved, you must continue taking the medication for about 2 weeks, otherwise the condition will easily worsen.

1. Symptomatic treatment

① Use intranasal drops of vasoconstrictor drugs, such as 0.25% epinephrine hydrochloride, to reduce the amount of serous mucus secreted in the nasal cavity, but it is not suitable for sick cats with mucopurulent secretions.

　② Corneal ulcers caused by nasal branches can be treated with antiviral eye drops, such as trifluridine or apreclovir eye drops, and antibiotic eye drops are used alternately.

③For sick cats with oral damage and long course of disease, vitamin A can be taken orally or intramuscularly, and broad-spectrum antibiotics can be used to prevent secondary infections. Ankapenicillin is the first choice, intramuscularly or orally.

2. Traditional Chinese Medicine Therapy

If the cat is sick due to negligence in epidemic prevention, traditional Chinese medicine can also be used to treat it. ?

Prescription: 20g Codonopsis pilosula, 20g Scutellaria chinensis, 15g Schisandra chinensis, 20g Scutellaria baicalensis, 20g Gardenia, 1g Bupleurum, 15g honeysuckle, 25g Forsythia suspensa, 10g Fangfeng, 15g Plantain, 10g licorice, decoct in water 2 times, each Decoct the medicine for 25 minutes. The combined volume of the two decoctions is about 300ml. Each cat should take 5ml of it by gavage twice a day.

4. Prevention

The focus should be on prevention. Since this disease is common, many adult cats carry specific antibodies. Kittens can acquire immunity through colostrum at 3 to 8 weeks. Therefore, feline viral rhinotracheitis can be cured through Injection of cat triple vaccine is the safest and most effective way to prevent this disease. In addition, the place where cats live must have a good ventilation environment. If the place is not large enough, try not to keep too many cats. When suspected sick cats are found, they must be isolated and disinfected in time to prevent contact transmission. The cats must also be fed Nutritious foods to boost their ability to fight off viruses.