What to do about Porcine High Fever Syndrome? Detailed treatment measures

Although there are currently no specific drugs or mature treatment protocols available, after an outbreak of Porcine High Fever Syndrome occurs in production, taking active response measures according to the situation on the farm is still very beneficial for reducing the incidence rate and mortality rate and decreasing economic losses.

(1) Disinfection is a way to cut off the transmission route of the disease and kill pathogens. After an outbreak occurs on a pig farm, disinfection work should be strengthened, and the concentration of the disinfectant solution should be increased. Strict disinfection should be carried out 2 to 3 times a day in the affected area and surrounding environment, and the living and management area of the pig farm should be disinfected once a day. Disinfection measures can achieve a relatively good effect in preventing the spread and expansion of the disease.

(2) Pigs that have already been infected and are ill should not be vaccinated with any vaccine, otherwise the mortality rate will be higher. The pig farm should, based on the diagnosis, urgently vaccinate the healthy pig herds that are not infected. It is best to isolate the influenza serotype strain on the farm and prepare an influenza vaccine for emergency vaccination, and after an interval of 2 to 3 days, vaccinate with attenuated swine fever vaccine. The dose should be increased by 1 to 2 times. During vaccination, strictly use one needle per pig to prevent cross-infection.

(3) After an outbreak occurs, drugs should be added to both drinking water and feed as soon as possible, and combined with injection of antibiotics or biological products to treat sick pigs, so as to reduce deaths caused by secondary bacterial infection.

For whole-herd medication for prevention and control, use Jiakang 500 grams + doxycycline 300 grams per ton of feed for 14 consecutive days; because sick pigs reduce their feed intake, drugs should also be added to drinking water at the same time. A compound preparation of antibiotics and traditional Chinese medicine extracts effective against both bacteria and viruses can be used, and a good-quality soluble multivitamin additive should also be added, allowing pigs to drink freely for 5 to 7 days.

For severely affected pigs, the therapeutic effect of antibiotics is not ideal, so careful nursing should be provided. One of the injectable forms of cephalosporins, compound doxycycline, penicillin, or long-acting sulfonamides can be tried together with injections such as Astragalus polysaccharide or compound Bupleurum injection, compound Scutellaria injection, and other injections for treatment. The dosage should not be too large, otherwise it will accelerate the death of sick pigs.

Some pig farms have tried using injections such as transfer factor, immunopeptide, and interferon in combination for control, with a certain effect. When using them, multiple vitamins and antibiotics should be added to the drinking water to reduce stress, so as to prevent a higher incidence rate and mortality rate.

For affected sows, 50 milliliters of Houttuynia cordata, 30 milliliters of aminopyrine, and 3.2 to 4.8 million units of amoxicillin can be dissolved in 5% glucose saline and administered by ear vein drip, injecting 1500 to 2000 milliliters per day.

For sick pigs with secondary infection and mixed infection with swine fever, the therapeutic effect of drug treatment is poor. Consider using serum from recovered or surviving pigs, as well as serum from unaffected sows on the farm or anti-swine fever virus serum for control. Under the guidance of relevant experts, typical pathological materials from sick pigs can also be collected to make autogenous tissue vaccine for prevention.

(4) Strengthen feeding management and carefully care for the affected pig herd, with heat prevention and cooling, good ventilation, and low-density raising. Do not drive sick pigs violently, and even more, do not rinse the pig herd with cold water, otherwise it will also worsen the disease condition and mortality rate.

(5) For sick pigs with particularly severe conditions and poor treatment effects, timely and decisive handling should be carried out to prevent the spread of the disease. Sites and tools contaminated by sick pigs must be thoroughly disinfected. Dead pigs should be necropsied at designated locations, and carcasses and waste should be subjected to harmless treatment such as burning and deep burial. Eating or arbitrarily discarding them is strictly prohibited.

(6) Pig farms with outbreaks should promptly report the epidemic situation to the relevant competent authorities, at the same time lock down the pig farm, handle dead pigs in a standardized manner, and stop all @#@136@#@ behavior to prevent further spread and expansion of the epidemic.