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Salmonellosis

Salmonellosis (salmonellosis) is an infectious disease of young farm animals and fur animals, characterized in acute course by fever and enteritis, and in chronic - pneumonia and joint damage.

Etiology. The causative agent in piglets is S. cholerae suis and its variants; in calves - S. dublin, less commonly S. typhimurium and S. enteritidis; in lambs, S. abortus ovis; in foals - S. abortus egui. All representatives of the salmonella group are morphologically indistinguishable from each other. These are small sticks (1-4 x 0.5 microns) with rounded ends, gram-negative; spores and capsules do not form, mobile. They grow well on ordinary nutrient media at a pH of 7.2-7.6 and a temperature of 37 ° C. Low resistance to various disinfectants.

Epizootological data. Calves get sick at the age of ten days to two months, sometimes older; piglets - on the first day of life up to 4 months of age (more often after weaning). Lambs get sick on the first day of life and less often at an older age. The source of the causative agent of salmonellosis is sick animals and bacteria carriers. Infection of calves, piglets, lambs occurs alimentary route, less often - aerogenic. Infection of foals occurs mainly in utero. Transmission factors are surrounding objects contaminated with excrement from sick animals containing salmonella. The transmission of the pathogen through infected milk and reverse is possible. Animals get sick at any time of the year, but more often in the winter-spring period.

The course and symptoms. The incubation period ranges from 1 to 10 days. The course of the disease is acute, subacute and chronic. In the acute course, there is a refusal of food, depression, fever, diarrhea. Feces are liquid, yellow-green. Piglets appear bluish skin, ears, neck, abdomen.
In a subacute course, diarrhea alternates with constipation, rhinitis, conjunctivitis and signs of bronchopneumonia are noted. The chronic course is accompanied by pneumonia, arthritis and exhaustion. Mortality ranges from 25 to 75%.

The diagnosis is made on the basis of epizootological data, clinical signs, pathological changes, the results of bacteriological and serological studies. The diagnosis of salmonellosis is considered established when isolating a culture with properties characteristic of a given pathogen and its typification in RA.

Differential diagnosis. It is necessary to differentiate in calves from diplococcal infection and colibacteriosis, in piglets from classical plague and dysentery, in foals about streptococcal infection, in lambs from anaerobic dysentery.

Treatment. For the treatment of the disease, polyvalent antitoxic serum against animal salmonellosis and bacteriophage are used, as well as antibiotics (cefatoxime, enroxil, cephalexin, flumizole, gentamicin, kanamycin, levomecitin norfloxacin, etc.), sulfonamides (norsulfazole, etazole, etc.) and nitrofu (nitrofu , furazolidone, etc.). Symptomatic treatment is also prescribed, which is aimed at removing intoxication and restoring the water-salt balance.

Prevention and control measures. The system of measures for the prevention of salmonellosis stipulates strict observance of zoohygienic and veterinary-sanitary rules, ensures regular cleaning and disinfection of premises. In stationary dysfunctional farms vaccinate pregnant animals. If a disease occurs, sick animals are isolated and treated, the rest are vaccinated, the premises are thoroughly disinfected.
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Salmonellosis

  1. Salmonella
    Salmonellosis of birds (Latin, English - Salmonellosis; paratyphoid, infectious diarrhea of ​​birds) is a disease characterized by an acute course of septicemia in young animals and latent infection in an adult bird. Historical background, distribution, hazard and damage. Salmonella is widespread. Salmonella was first isolated from pig organs by American veterinarians Salmon and Smith in 1885.
  2. Salmonella
    Salmonellosis (lat., English - Salmonellosis; paratyphoid) - a large group of zoonotic diseases of mainly farm animals, characterized in young animals with acute course of fever, septicemia, toxicosis and diarrhea, and with subacute and chronic - pneumonia and arthritis; in adult females, by abortion; in humans, it proceeds in the form of foodborne toxicoinfections (see color insert).
  3. Salmonellosis
    Salmonellosis (salmonellosis) is an infectious disease of birds, mainly young animals, characterized by diarrhea, conjunctivitis, septicemia, intestinal damage and exhaustion. Etiology. The causative agents of the disease S. typhimurium, S. enteritidis, S. сholeraesuis, short gram-negative, motile, spores and capsules not forming sticks. In the external environment retains its biological properties
  4. SALMONELLOSIS AND THEIR PREVENTION
    According to the classification of foodborne diseases, salmonellosis was previously assigned to the group of microbial food poisoning that causes toxic infections. Currently, according to the current classification, salmonellosis is assigned to the group of acute intestinal infections, where they are allocated in an independent section: "Other salmonella intestinal toxicoinfections." However, in their appearance, course, prevention, they also
  5. SALMONELLOSIS (SALMONELLOSIS)
    Salmonellosis is an acute contagious disease that affects mainly puppies of weaned age. Etiology. The genus Salmonella includes 65 groups and is widespread in nature. Salmonella parasitizes in the body of domestic as well as wild animals, including birds, fish, reptiles. Many species are highly pathogenic and dangerous to humans. In dogs, Salm is more often secreted. cholerae suis, S.
  6. Salmonella
    Salmonellosis (lat., English. - Salmonellisis) - a disease of adult bees, manifested by damage to the digestive system. The causative agents of the disease. The disease can be caused by various representatives of the genus Salmonella: S. typhimurium, S. gallinarum-pullorum, S. enteritidis, S. dublin, S. florida (see part 1, Salmonella). Salmonella is pathogenic to animals and birds of many species and is often found
  7. Salmonellosis
    Salmonellosis (salmonellosis) - an infectious disease of young animals, characterized by a violation of the digestive tract, the development of toxemia, sepsis, sometimes metritis and abortion. Etiology. The causative agent of the disease is a gram-negative movable rod with rounded ends, it does not form spores and capsules, it is relatively stable in the external environment. Disease in small animals
  8. Salmonella
    Salmonellosis is an acute infectious disease caused by microbes of the genus Salmonella, occurring mainly with gastrointestinal tract lesions, less often in the form of generalized forms. Clinical diagnosis The incubation period for the alimentary route of infection is 12-24 hours, for contact - 3-7 days. Gastrointestinal form. Gastritis, enteritis, gastroenteritis. The onset is acute. Fever, pain in
  9. Salmonellosis
    Cause The causative agents of the disease are salmonella, motile sticks with flagella, which are found in foods such as eggs, meat and milk. Favorable conditions for the propagation of salmonella are created in hot weather. Products at risk include ice cream, creamy desserts, mayonnaises, salads, egg-protein based dishes (creams, cakes), milkshakes, soft-boiled eggs, etc.
  10. Salmonellosis and other acute intestinal diarrheal infections
    Training target: using diagnostic algorithms, be able to establish a diagnosis of salmonellosis, escherichiosis and other acute intestinal diarrheal diseases, determine the clinical form, severity, stage of the disease, and prescribe adequate treatment; conduct dispensary observation. Assignment for independent study of the topic. Using the textbook and lecture material for the acquisition
  11. Salmonellosis of ostriches
    Salmonellosis is an infectious disease characterized by septicemia, a fibrinous diphtheria of the intestine. Etiology. In ostriches, Salmonella enteridis is most often isolated. These are short gram-negative movable sticks with rounded ends. They do not form spores and capsules; they are cultivated under aerobic and anaerobic conditions. Epizootological data. The main source of pathogen
  12. Salmonellosis
    These are intestinal diseases caused by bacteria of the Salmonella genus (with the exception of Salmonella, which causes typhoid fever and paratyphoid fever), with severe symptoms of intoxication. These microorganisms are stable in the environment, tolerate low temperatures, survive in water and household items at room temperature for up to 45-90 days. In salted meat - 2-3 months, in milk - 2-40 days. At
  13. Salmonellosis
    Salmonellosis is an acute infectious disease of humans and animals caused by Salmonella serovars and occurs in children more often in the form of gastrointestinal, less often typhoid-like and septic forms. Etiology. Salmonella are motile gram-negative bacteria that do not have capsules and do not form spores. The main antigens of Salmonella are flagella (H), antigens of the cell wall (O) and
  14. Salmonella
    Salmonellosis is an acute infectious disease caused by salmonella, most often Salmonella tyrhimurium. Cats are sick much less often than dogs, although epizootics also occur, especially in kittens (R.M. Gaskell, M. Bennet, 1999). Infection occurs alimentary by eating salmonella-contaminated foods or wild bird meat. As a contributing factor, immunosuppression is isolated.
  15. Salmonellosis
    Salmonellosis is an infectious disease of bee families, accompanied by the death of adult bees. Etiology. Pathogen - Sal. typhi murium, Sal. cholerae suis, etc. It is gram-negative, motile (except Sal. Pullorum gallinarum), spore and capsules not forming a stick. Optional aerob, size 2-4 x 0.3-0.5 microns. It is well stained with all aniline dyes. Epizootology. Disease
  16. FOOD SALMONELLOSIS
    Salmonellosis is an infectious disease of mammals and birds, proceeding very diverse, but most often in the form of typical toxicoinfections. The main transmission routes are food, less often - contact. HISTORY REFERENCE. In 1885, American microbiologists Salmon and Smith isolated a bacterial culture from the meat of sick pigs, which later became part of an extensive group of microorganisms called
  17. Paratyphoid (salmonellosis)
    This is an infectious disease of young birds of many species, but ducklings and goslings are mainly affected. The causative agent of the disease is salmonella. A person is also susceptible to the disease. The incubation period of the disease can last from 12 hours to 7 days. Most often, young animals get sick - at 2-6 weeks of age, the bird is most susceptible to the disease, weakened and affected by other diseases.
  18. Salmonella
    Richard L. Guerrant (Richard G. Guerrant) The genus Salmonella consists of three species, which include more than 2000 different serological types. Serotia vary significantly in degree of pathogenicity, but almost all of them are pathogenic to animals and humans. Strict specificity in the choice of hosts is characteristic of certain serotypes, such as S. typhi, which in natural
  19. Salmonellosis
    Salmonellosis
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