Health, Diseases and Conditions
Newcastle disease - a dangerous viral disease
Newcastle disease is a viral disease of birds. First of all, this refers to the family of chicken. The disease can be transmitted to a person.
Causes of pathology
The causative agent of the disease is the virus. It occurs in four different variants (strains). They differ among themselves in severity of pathology, its nature and pathogenicity.
The virus that causes Newcastle disease is larger than its counterparts in size. In this case, it has the shape of an oval. It contains ribonucleic acid, and the device of this virus is very difficult. This causative agent is quite resistant to environmental factors and can be transferred to long distances, causing outbreaks of the disease. This is confirmed by many facts. For example, in frozen bird carcasses, it can remain viable for up to six months.
Newcastle disease in animals
Pathology is the most dangerous disease of birds. It is distributed throughout the world. It is also familiar in Russia. The source of the causative agent of pathology is a sick bird. The main way in which the virus is transmitted is respiratory, that is, through the respiratory tract. Two days after infection, the sick bird excretes the causative agent along with the exhaled air. Factors for the transmission of pathology can serve as feed and water, tools and eggshells that are infected with a sick bird.
Danger to people
There are human viral diseases that are transmitted to him from the affected animals. Newcastle disease is one of such pathologies. Infection of people occurs through the dust they inhale, which is contaminated with the virus. The pathogen can be introduced through the conjunctiva of the eyes, larynx and digestive system. Fortunately, the natural susceptibility of a person to this virus is low.
Pathology is sporadic in nature. It affects people of working age, whose activities are directly related to poultry farming. The incubation period lasts for three to seven days. The course of the pathology is accompanied by a slight increase in temperature and has symptoms of a cold. The disease is often accompanied by conjunctivitis. It's harder for his children. Often they have cases of brain damage.
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