home
about the project
Medical news
For authors
Licensed books on medicine
<< Previous Next >>

Escherichiosis

Escherichiosis (echerichiosis) is an infectious disease accompanied by profuse diarrhea, signs of severe intoxication and dehydration.

Etiology. The causative agent of the disease are enteropathogenic strains (E. coli) of E. coli, which are characterized by high virulence and the presence of hemolytic properties. The causative agent of the disease is an optional anaerobic and is a short, thick (0.2-0.7 x 2-4 microns), gram-negative bacillus with rounded ends, not forming a spore.

The causative agent in feces retains its biological activity for up to 30 days, in soil, water - up to several months.

Epizootology. The disease is susceptible to newborn youngsters aged 1-4 days, somewhat less often - at 5-10 days of age.

The source of the causative agent of the infection is sick and ill animals, as well as adult bacterial carriers that intensively excrete the pathogen with feces and sometimes with urine. The transmission factors for Escherichia are contaminated feed, water, inventory, litter, clothing, etc. The carriers of the pathogen are wild rodents and birds. Infection occurs both during childbirth, in particular when hygiene rules are not followed, and when the feeding and keeping conditions of animals are violated. The causative agent enters the body with food, water, less often by an aerogenous route.

The disease proceeds in the form of enzootia, with the coverage of a significant population, without strictly expressed seasonality. In stationary dysfunctional farms, the mortality of puppies can reach 15-25%.

Pathogenesis. Enteropathogenic pathogen strains, once in the gastrointestinal tract, cause the development of dysbiosis and intoxication phenomena. Subsequently, having penetrated the bloodstream, determine the state of septicemia.

Symptoms and course. The incubation period lasts 1-5 days and is characterized by an acute and subacute course. In puppies, the disease manifests itself in enteric and septic forms.

With an enteric form, a decrease in appetite is noted, puppies become inactive, restless, squeak. Signs of inflammation of the gastrointestinal tract develop - feces become liquid, gruel, yellow. In the future, diarrhea intensifies, the color of excrement becomes gray-white or dark gray with an admixture of mucus, fetid odor, sometimes the feces foam. In suckling puppies, excrement contains clots of curdled milk, sometimes mixed with blood. In severe cases, the bowel movement becomes more frequent and becomes involuntary. The coat near the anus, on the tail, hind limbs is moist, contaminated with dried, glued stools. The body temperature at the onset of the disease reaches 40-41 5 ° C, then in the agonal period decreases to normal and even lower. Puppies intensively lose weight, the fur loses its luster, becomes tousled, coordination of movement is disturbed due to the weakness of the hind limbs. In the acute course, the disease ends in death on the 3rd-6th day. With subacute - on the 10-16th day.

The septic form is accompanied by symptoms of meningoencephalitis, with impaired coordination of movement, the development of paresis and paralysis of the limbs and seizures.

In infected pregnant females, abortions or the birth of dead puppies, loss of appetite and depression are recorded.

In nutria puppies, the earliest sign of illness is anxiety, expressed in continuous squeak.
The hair and skin near the anus are contaminated with feces. With a light massage of the abdomen, liquid feces of a heterogeneous consistency are released from the anus. Its color is yellow-green or white-yellow with bubbles of gas and mucus.

Pathological changes. At autopsy of animals that died during Escherichiosis, an enlarged spleen, catarrhal-hemorrhagic enteritis, in some cases with hemorrhages on the mucous membrane, serous lymphadenitis of the mesenteric nodes, catarrhal bronchopneumonia and exicosis are revealed.

Diagnosis. The diagnosis of escherichiosis is established on the basis of clinical and epizootological data, the results of pathological changes with the mandatory conduct of microbiological studies.

The diagnosis is considered established when isolating Escherichia cultures from the following two organs: spleen and bone marrow or spleen and brain without determining pathogenicity and serological affiliation. In addition, the diagnosis will be recognized as established by isolating from at least two Escherichia organs pathogenic for white mice.

Escherichiosis should be differentiated from viral gastroenteritis, salmonellosis, eimeriosis, gastroenteritis of non-infectious etiology and streptococcosis.

Treatment. As a specific treatment, polyvalent antitoxic serum against salmonellosis and colibacteriosis of farm animals and birds is used. In addition, agents of pathogenetic, symptomatic and rehydration therapy are used. Antibacterial drugs are used only after determining their sensitivity to isolated cultures of Escherichia.

Prevention and control measures. When a diagnosis is established, restrictions are introduced, according to which a thorough clinical study and thermometry are carried out, followed by isolation and treatment of sick animals. Disinfect aviaries, sheds, houses, equipment using a 3% hot solution of sodium hydroxide or 2% formaldehyde; 3% solution of chloramine or 2% solution of hypochlor; 1% solutions of vircon C, polysept, metacid, fogucid.

Females are immunized to create passive immunity in puppies using a multivalent vaccine against salmonellosis and colibacteriosis of fur animals. Create the optimal technological regime for keeping animals. Conduct deratization. The corpses of dead animals are destroyed. Manure is disinfected biothermally. Restrictions are removed in the absence of sick animals, obtaining a healthy offspring and the implementation of veterinary-sanitary and special measures in full.
<< Previous Next >>
= Skip to textbook content =

Escherichiosis

  1. ESHERICHIOSIS
    Escherichiosis (lat., English. - Escherichiosis; Escherichiosis) - a disease of adult bees, characterized by diarrhea and death as a result of sepsis. The causative agent of the disease. The causative agent of escherichiosis (colibacteriosis) of bees is Escherichia coli (E. coli), which does not differ in properties from the causative agent of the disease in animals (see Part 1, Escherichiosis). Honey bee, bumblebees, like most others
  2. ESHERICHIOSIS
    Escherichiosis (lat., English - Escherichiosis; colibacteriosis, colienteritis, colisepsis) is an acute zoonotic disease of young animals of many species, manifested by septicemia, toxemia and enteritis, dehydration of the body, damage to the central nervous system, growing depression and weakness, and pneumonia (see color insert). Historical background, distribution,
  3. Escherichiosis
    Escherichiosis (colibacteriosis) is a spring disease of bee colonies caused by Escherichia coli and accompanied by the death of adult bees. Distributed where there is a high concentration of animal etiology. The causative agent is a tagged Escherichia coli.- gram-negative, motile and motionless bacillus 0.4-0.6 x 1-3 microns in size. Spore and capsules do not form an optional aerobic. Has a lot
  4. Escherichiosis
    Escherichiosis - acute infectious diseases mainly of young children, caused by various serovars of pathogenic Escherichia coli. They are characterized by the development of pathological processes in the gastrointestinal tract with infectious toxic and diarrheal syndrome, less often - damage to other organs or generalization of the process up to sepsis. Certain strains of E. coli may
  5. Escherichiosis
    Escherichiosis (escherichiosis) is a septicemia-like disease with symptoms of intoxication. Etiology. The causative agent of the disease is a pathogenic E. coli bacillus, with hemolytic activity, gram-negative, does not form a spore. It has adhesive properties (K88, K99). Bacterial serotypes 08, 09 form a capsule. In the external environment retains its biological properties in
  6. 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
  7. Toxicosis with Exicosis
    Toxicosis with exicosis is a pathological condition that develops, as a rule, with intestinal infections, characterized by the presence of toxemia, dehydration (exicosis) and, in some cases, bacteremia with the development of septic foci. Exicosis - a sharp decrease in the water content in the body due to insufficient intake or excessive excretion of it. Etiology. All acute intestinal infections taken
  8. differential diagnosis and treatment
    Differential diagnosis of dysentery with other acute diarrheal diseases (salmonellosis, escherichiosis, intestinal yersiniosis, staphylococcal enterotoxin poisoning, cholera, amoebiasis). Differential diagnosis of dysentery, cholera and salmonellosis.
  9. Edematous Piggy
    Edematous disease (lat. - Morbus oedematosus; English - Oedema disease; enterotoxemia, enterotoxic escherichiosis) is an acute disease of post-dark piglets characterized by hemorrhagic gastroenteritis, toxicosis, damage to the central nervous system and edema in the tissues. Historical background, distribution, hazard and damage. For the first time the disease was
  10. Colibacillosis
    Colibacteriosis (colibacteriosis) (Escherichiosis, colidia, colisepsis) is an acute disease of young farm animals, manifested by septicemia, toxemia and enteritis. Etiology. The causative agent is Escherichia coli. This is a gram-negative bacillus with rounded ends, 2-3 x 0.4-0.6 μm in size, does not form a spore, does not form a capsule, with the exception of individual strains
  11. LABORATORY DIAGNOSTICS
    main indicators: specific gravity of blood plasma, monitoring of hematocrit, electrolytes • specific diagnostics: • microscopy of bowel movements - a characteristic form of pathogens (arranged in parallel in the form of fish schools, mobile). This allows you to make a preliminary diagnosis. • The classical study at the first stage involves sowing 1% alkaline peptone water followed by
  12. Respiratory Mycoplasmosis
    Respiratory mycoplasmosis (mycoplasmosis respiratopia) - (air sac disease) is an infectious disease characterized by catarrh-fibrinous inflammation of the respiratory system, synovitis, and exhaustion. Etiology. The causative agent of the disease is the optional aerobic Mycoplasma gallisepticum, which occupies an intermediate position between bacteria and viruses. Mycoplasmas do not have typical
  13. Sanitary and parasitological requirements for soil treatment and agricultural use of wastewater and their rainfall
    Wastewater, as already noted, may contain pathogens, viruses, protozoa and helminth eggs. The most common bacteria include salmonella, enteropathogenic Escherichia and mycobacteria. Often found in wastewater cysts of dysenteric amoeba, giardia, ascaris eggs, whipworms, teniids, hookworms, etc. In the United States, an attempt was made to assess the relative
  14. TOXICOINFECT
    ESHERICHIOSIS (a disease caused by bacteria of E. coli.) Esherichia bacteria are of fecal origin and are permanent inhabitants of the intestines of humans and animals, are widespread in the environment (water, soil, etc.). The disease caused by pathogenic strains of Escherichia coli is called eshirichiosis. The severity of the manifestation of the disease depends on the state of human health,
  15. Acute intestinal infections
    Scope of examination 1. Acute intestinal infections - a group of diseases, including dysentery, salmonellosis, escherichiosis, foodborne toxic infections, the clinical manifestations of which are dyspeptic disorders, intoxication and dehydration. 2. The source of infection is a sick person and a carrier, salmonellosis is spread by domestic animals and rodents; infection pathway -
  16. Pseudomoniasis
    Pseudomoniasis (septicemia) is an infectious disease of bee colonies, accompanied by paralysis of the motor organs, septicemia (multiplication of the pathogen in hemolymph) and the death of adult bees with the characteristic decay of corpses into separate fragments. Etiology. Pathogen - Pseudomonas apisepticum - gram-negative, motile bacillus 2.0 x 0.8 microns in size, optional aerobic, spore and capsules
  17. 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
  18. Vizer V.A .. Lectures on therapy, 2011
    On the subject - almost completely cover the difficulties in the course of hospital therapy, the issues of diagnosis, treatment, as stated, are concise and quite affordable. Allergic lung diseases Joint diseases Reiter's disease Sjogren's disease Bronchial asthma Bronchiectasis Hypertension Glomerulonephrosafasdit Esophageal hernia Destructive lung diseases
  19. ALLERGIC LUNG DISEASES
    In recent decades, a significant increase in the number. patients with allergic diseases of the bronchopulmonary apparatus. Allergic lung diseases include exogenous allergic alveolitis, pulmonary eosinophilia, and drug
Medical portal "MedguideBook" © 2014-2019
info@medicine-guidebook.com