Residents of Chekhov and the region are reminded to prevent bird flu

08 Apr 2022 10:37

DAIRY FLU is an acute infectious, particularly dangerous disease that is transmitted to humans from animals. Its causative agent is a type A virus.

All types of birds are susceptible to the flu, including chickens, turkeys, ducks, pheasants, guinea fowl, quail, wild boar, storks, gulls and almost all other types of humans (pigeons, sparrows, gulls, ducks, mites, etc.), wild, exotic and ornamental birds, as well as pigs, horses, ferrets, mice, cats, dogs, other vertebrates and humans.

Avian flu does not cause mass illness in wild birds and is asymptomatic, but in domestic birds it can cause serious illness and death. This disease is characterized by a potentially high risk of the pathogen to humans.

Sources of avian influenza viruses in nature.

The main source of the virus in nature is waterfowl, which carry the virus in their intestines and channel it into the environment with saliva and feces. In wild ducks, the influenza virus multiplies mainly in the cells of the gastrointestinal tract, while the virus does not cause visible signs of disease in the birds themselves and is released into the environment in high concentrations. Asymptomatic influenza in ducks and birds can be the result of adaptation to a given host for several hundred years. Thus, a reservoir is created that provides biological “immortality” to influenza viruses.

Ways of infection by avian influenza.

Infection of humans and poultry occurs through close contact with infected and dead wild or poultry. In some cases, human infection is possible when eating meat and eggs of sick birds without adequate heat treatment.

The secretions of infected birds, which enter plants, air, water, can infect humans and healthy birds through water when they drink and bathe, as well as through airborne droplets, airborne dust and dirty hands.

Resistance of avian influenza viruses to physical and chemical effects.

1. Turn off (dies) at plus 56 ° C for 3 hours, at plus 60 ° C for 30 minutes.

2. Inactive in acidic environment.

3. Deactivated by oxidants, lipid solvents.

4. Inactivated by formalin and iodine-containing preparations.

5. The avian influenza virus, unlike the human, is very stable in the external environment – it can live in the corpses of dead birds for up to a year.

6. Long-term storage in tissues, feces and water.

Symptoms of avian influenza in poultry.

Infection in poultry can be asymptomatic or cause reduced egg production and respiratory disease, as well as a thunderous form, causing the bird to die rapidly from systemic infection without preliminary symptoms (highly pathogenic avian influenza). In sick wild and domestic birds there is unusual behavior, disorientation of movements, lack of response to external stimuli and depression. There is swelling and tanning of the crown and cyanosis of the earrings, swelling of the subcutaneous retina head and neck and the death of the bird within 2472 hours.

Symptoms of avian influenza in humans.

From infection to the first signs of the disease can last from several hours to 5 days. Avian flu starts with chills, fever up to 38 ° C and above, muscle and headaches, sore throat. Possible watery loose stools, recurrent vomiting. After 2-3 days there is shortness of breath, wet cough, often with mixing of blood. Such a virus is dangerous because it can lead to pneumonia very quickly and in addition, it can cause serious complications to the heart and kidneys and affect the brain.

At the threat of avian influenza:

1. In order to prevent the infection of birds with influenza in individual households of citizens, it is necessary to transfer all poultry to closed storage.

2. Install scarecrows, rattles and other means to scare wild birds on farms.

3. At the moment, it is not recommended to buy live birds and replenish the poultry population.

4. It is necessary to take care of the bird, to clean the premises and the area in the work clothes available for it (robe, apron, gloves, rubber shoes). Do not drink, eat or smoke while cleaning.

5. Periodically (2-3 times a week) disinfect the rooms and equipment you have previously cleaned (scoops, brooms, bathtubs) with a hot solution of caustic soda 3% or bleach solution 3% (chloramine).

6. After disinfecting the poultry house, the perch and the nests should be whitened twice (at an hourly interval) with freshly dried lime.

7. All work clothes must be disinfected (soaking in 3% chloramine B solution for 30 minutes, boiling in 2% sodium carbonate solution) and then washing.

8. When a dead bird is found or a sick bird is found on the road, in private households of citizens, it is necessary to immediately inform the state veterinary service of the region at the place where the bird was found or kept to take the necessary measures for the examination of the bird for flu.

Prevention of avian influenza in humans:

To prevent avian influenza in humans, it is necessary:

1. Follow personal hygiene rules, including not storing purchased raw poultry and eggs with non-cooked products (bread, cheese, sausages, pastries, etc.).

2. Avoid contact with suspicious or dead birds.

3. Caring for poultry in work clothes available for it (robe, apron, gloves, rubber shoes). During the period of contact with the bird (feeding, cleaning, etc.), you should not drink, eat, smoke.

4. Obtain poultry meat and eggs for eating in authorized commercial premises only if accompanying veterinary documents are available.

5. Eat poultry meat and eggs after heat treatment: boil eggs for at least 10 minutes, meat – at least 30 minutes at 100 ° C. 6. Avoid contact with waterfowl and fellow birds (pigeons, sparrows, crows, gulls, ducks, shoemakers, etc.).

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