Various prevention and control measures of human infection with Streptococcus suis
The main measure to control human-pig severe streptococcal infection is to control the epidemic situation of live pigs, there will be no human infection without the epidemic situation of live pigs, it is also necessary to ban the slaughtering of diseases and dead pigs, and to strengthen the personal protection of butchers and so on.
Health education: through publicity and education, pig slaughtering and processing personnel are aware of the harm of exposure to sick and dead pigs, and require them to do a good job of self-protection; improve the ability of households and butchers to identify pig diseases and diseased pork. Pig farmers are required to take the initiative to report the epidemic situation of sick pigs, dead pigs should be buried or burned on the spot, and it is forbidden to throw them into rivers, ditches, ponds and other water bodies. The public should not buy and eat sick or dead pork.
Immunization: there is no human streptococcal vaccine at present. Before the epidemic peak of swine disease, Streptococcus suis vaccine was inoculated. According to the main strains of local swine disease epidemic, targeted vaccines should be selected and inoculated by veterinary departments to ensure the quality and success rate of vaccination. Live pigs vaccinated with vaccines should be registered and marked.
Preventive medication: for areas with streptococcal pig disease and pigs in close contact with diseased pigs, preventive medication can effectively reduce the epidemic situation of live pigs. In areas where there is no epidemic situation of live pigs, preventive medication is not recommended to prevent the emergence of drug-resistant strains.
Pig disease surveillance and pig epidemic situation: establish and improve the reporting system of pig epidemic situation, implement a centralized pig slaughtering system, unified quarantine, and strictly prohibit the slaughtering of sick and dead pigs; at the same time, strengthen the quarantine and management of listed pork and prohibit the sale of sick and dead pork.
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Prevention and treatment of Clostridium welchii Disease in Sheep
From February to March 2002, lambs less than 2 months old suddenly fell ill in a sheep farm in a city, and less than 2 hours after treatment, they died of ineffective treatment. 1 Clinical symptoms: diseased sheep are isolated, crawling alone, unwilling to walk, weakness and dyskinesia during forced exercise, abdominal swelling, mild symptoms of lying down, difficulty in defecation, acute weight in the other, black and soft stool, mixed mucus and exfoliated mucus, and blood between them. The body temperature of one sheep is 38.5 ℃, the other two are 40.5 ℃ and 4.
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