Virus Visny

Spring virus (VHV-1) is a virus of the retrovirus family (Retroviridae) that causes a demyelinating disease in sheep. It belongs to the group of slow viruses and has not been identified as pathogenic for humans.

Spring virus was first described in 1958 in sheep in Great Britain. It was later discovered in other animals, including goats, pigs, chickens and mice. The virus causes demyelination of nervous tissue in sheep and is accompanied by neurological symptoms.

The study of the spring virus began in the late 1980s and continues to this day. Scientists are studying its structure, genetics and pathogenesis to better understand its role in sheep diseases.

Although spring virus is not pathogenic to humans, it can be dangerous to animals, especially sheep and goats. Therefore, it is important to monitor and control the spread of the virus among animals.

There are currently no effective treatments or prevention methods for spring virus. However, research continues to find new methods to combat this disease.

Visna virus (Ovispinosa virus) is a single-stranded RNA virus that belongs to the genus Orthomyxoviridae. It is one of the known viruses of the arbovirus group. The virus causes demyelination of nerve cells when it infects sheep, but is considered relatively harmless to humans. Although some authors suggest that it may cause infections in humans, especially after exposure to other factors such as stress or immunodeficiency.

Visna virus was discovered and studied in 1959, when it was first isolated from sheep in Argentina. Since then, many studies have been carried out to understand the role of this virus in animal agriculture. Research has shown that Vistna virus can cause large losses in sheep and goats. It can also negatively affect milk and wool production in these animals. Although this virus is highly contagious and can easily spread from animals to people through dust, water and food, it is not very common among humans. To better understand how the Visna virus works, it is important to know how it is transmitted. This virus is highly transmissible when it enters the body through the skin, mucous membranes of the respiratory tract or intestines. It penetrates into mitochondrial-type cells of the body and triggers the synthesis of new virions that can infect new cells. Weak animals with weakened immune systems are especially susceptible to infection with this virus. In this case, there is a rapid process of reproduction and migration of the virus in the body, which can lead to exhaustion and death of the animal. A person can encounter the Visna virus through contact with an infected animal or through food contaminated with virus particles.

The mechanism of the human body's immune response to the Visna virus also raises many questions. Some studies have shown that immunity against the virus is developed in animals suffering from its chronic course, as well as in those who have previously been infected. However, these results were obtained using laboratory mice and cannot be directly applied to humans due to potential differences in the immune response of these species. Also, a person's immune response may differ due to the characteristics of each person's immune system and the influence of additional factors.

In conclusion, it can be said that although the Wizna virus has significant economic significance for animal husbandry and veterinary medicine, it remains poorly studied. Although there are no documented cases of human illness from this virus, further research is needed to warn people about the potential risks when working with animals sick or infected with this virus.