West Nile Virus

Improved Essays
Unlike other bodily cells, neurons do not undergo cell division, meaning that their health is critical.
When WNV infects the central nervous system, it triggers the response of a type of glial cell known as a microglial cell. Microglial cells are the primary component of the central nervous system’s immune response. These cells phagocytize, or swallow, and remove the pathogen-damaged nerve cells. They also activate proinflammatory cytokines which can unintentionally cause harm to healthy cells.1 Some symptoms, especially motor impairment, may persist even after the infection clears due to this damage of the nervous system.
Vaccination is the primary means of West Nile Virus prevention in horses. There are currently 4 USDA licensed vaccines. The first time a horse receives the vaccine, it receives one dose followed by another dose 3-6 weeks later. This series should be completed 4 weeks prior to mosquito season for best results. An annual booster should also be administered.2
…show more content…
West Nile virus (WNV), named for its discovery in the West Nile District of Uganda, is a mosquito-borne pathogen commonly found in Africa, Asia, and the Middle East.2 Ever since its detection in the United States in 1999, WNV has been a health threat to the nation’s horse population. Currently, no treatment for the virus exists.
After the initial infection, horses may begin exhibiting symptoms anywhere from 3-15 days. However, only about 10-39 % of infected horses experience symptoms.2 West Nile Virus targets the central nervous system leading

Related Documents

  • Superior Essays

    Jenna Obert-Thorn Compare and Contrast Essay Engl 1101 TR 8:00 Ms. Bell September 20, 2016 Impacts on a Horse’s Health Many people enjoy the sport of horseback riding. Some may only ride horses for fun, as a hobby they enjoy in their free time. However, a large majority of those who ride do so competitively. Two common competitive styles of riding include barrel racing and pleasure.…

    • 1061 Words
    • 5 Pages
    Superior Essays
  • Improved Essays

    Henipavirus or the common name The Hendra Virus was first identified in Australia in 1994 at a racing stable in the Brisbane suburb of Hendra, The Virus originated in Malaysia. The disease is very similar to Nipah Virus which also originating from flying foxes in Malaysia. Signs and symptoms Signs in a human: Symptoms usually develop between 5 to 21 days after contact with an infected horse. These symptoms may include fever,cough,sore throat,headache and tiredness, these are the common symptoms of henra.…

    • 427 Words
    • 2 Pages
    Improved Essays
  • Decent Essays

    The Norwalk Virus is the most common cause of epidemic nonbacterial gastroenteritis in the world. It is named for the city of Norwalk,Ohio in which the first confirmed outbreak occurred in 1968,infecting almost all the students and teachers of a nearby school. This epidemic, also known as Norovirus, is spherical shaped with hexagonal designs spanning all round its surface. When examined through a microscope,this virus can be in different colors ranging from red and orange to blue and green.…

    • 132 Words
    • 1 Pages
    Decent Essays
  • Improved Essays

    Zika Virus Dbq

    • 724 Words
    • 3 Pages

    A “virus” is defined as: “an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by a light microscope, and is able to multiply only within the living cells of a host” (Document B). Originating from Uganda, the Zika virus was first discovered in 1947 in an infected money in the Zika forest, where its name originates. The Zika virus is a typical one-stranded RNA virus with nucleotide sequences relating it to other African and Asian virus strains. It is capable of infecting other species such as monkeys, elephants, lions, zebras, and rodents. Primates, like humans and monkeys, are known to be the primary hosts and reservoirs.…

    • 724 Words
    • 3 Pages
    Improved Essays
  • Great Essays

    One of their main properties is their ability to establish life-long latent infections in their hosts even in those with natural or vaccine-induced immunity” (Taouji et al. 394). This virus is the cause for the death of some of the horses in Normandy. It is the cause of death for 1 out 4 horses that they have completed autopsies on. After the World War II there was not much medical advancements, because the towns had to be rebuilt for the invasions. It was not safe for people to live there, so now that Normandy is back up and functioning the veterinarians have made some medical advancements.…

    • 1831 Words
    • 8 Pages
    Great Essays
  • Improved Essays

    The Hendra virus when infected within a horse can hold the symptoms in an incubation period without even showing any signs that the horse is infected. The period of incubation, can be from 5-21 days before showing symptoms of the virus. Some horses will show immediate physical signs, such as a sudden fever. Other horses can react with neurological illness and even respiratory illness before a rapid death. The Hendra virus is a deadly virus with many symptoms and/or illnesses.…

    • 385 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    Zika Outbreak

    • 1377 Words
    • 6 Pages

    The Pan American Health Organization have put out a few recommendations to combat the Zika outbreak. The organization suggests reducing and eliminating any mosquito breeding site on your property. Related to this, people should close off their homes to mosquitos. Such methods include using window screens rather than an open window with no screen. Also, the PAHO recommends sleeping under a mosquito net to prevent bites while you are asleep.…

    • 1377 Words
    • 6 Pages
    Improved Essays
  • Improved Essays

    According to the article “When Mosquitoes Were Killers in America” by Lauren Tarshis, its shows many ways how mosquitoes are more than a nuisance to humans, but also to animals. Mosquitoes bite humans infected, and then bite another person who isn't infected with a disease and than both of them have a disease, or when animals have a disease and the mosquito bites them and then comes and bites the human than the human has that same disease and could die. “A mosquito bites someone infected with malaria. A few days later, when the mosquito is read for its next meal, it bites someone else. And the mosquito jabs the new victim's flesh, malaria germs known as Plasmodium enter that person’s blood.…

    • 387 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    Ols Co-Culture Model

    • 1078 Words
    • 5 Pages

    In vivo, OLs do not exist as an isolated population. Rather, they formed a complex network with all the other major cells types in the CNS. Signaling between OLs and neurons, astrocytes and microglia have been reported plenty (Bastmeyer et al., 1991; Schwab and Schnell, 1991). To further assess whether the injury mechanism we observed in vitro faithfully reflects the real HIV pathogenesis in vivo, we used two models, a co-culture model where OLs are cultured on top of a mixed glial layer and a brain aggregate model where dissociated progenitors acquired from mice or human fatal tissues were supplied with serum and allowed to aggregate spontaneously.…

    • 1078 Words
    • 5 Pages
    Improved Essays
  • Superior Essays

    This paper takes a look at equine infectious anemia and will examine the laws, control and prevention, and how the disease currently stands in the world. The first case of equine infectious anemia (EIA) was reported in 1843 in France. It is classified as a lentvirus in the Retroviridae family, which results in episodes that…

    • 1288 Words
    • 5 Pages
    Superior Essays
  • Improved Essays

    Black legged ticks are small and their bites are often painless. Although painless, an infected tick can transmit bacterium Anaplasma phagocytophilium to humans and go undetected for days or even weeks. Symptoms can manifest in a variety of ways with the most common being fever, headache, muscle pain, malaise, chills, nausea, abdominal pain, cough, and confusion (Centers for Disease Control [CDC], 2016) . Due to the generalized symptoms, treatment is often delayed until more serious complications such as difficulty breathing, hemorrhage, renal failure or neurological problems present (CDC, 2016).…

    • 591 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    To Vaccinate or Not to Vaccinate? Every horse owner will struggle with vaccinations to some degree. There are so many vaccinations available to horse owners. Drug companies and some veterinarians may push these vaccinations for financial gain, personal belief, or some other reason.…

    • 797 Words
    • 4 Pages
    Improved Essays
  • Great Essays

    The active virus is present in only the reproductive tract of pregnant females (Lavigne, 2002). The most common route of transmission is oral. Bison and elk, like most ungulates, lick…

    • 1411 Words
    • 6 Pages
    Great Essays
  • Superior Essays

    Yellow Fever Virus

    • 1135 Words
    • 5 Pages

    Examination of Molecular determinants of Yellow Fever Virus pathogenicity in Syrian Golden Hamsters: one mutation away from virulence Christian Lee West Coast University: Ontario Native and endemic to the tropical and subtropical locations of Africa and South America, these areas are where Yellow Fever is most prevalent. According to Klitting, Roth, Rey, and Lambellerie, “Yellow Fever Virus was named after the jaundice characteristic of the liver dysfunction caused by the infection with Yellow Fever Virus (YFV)” (Klitting, Roth, Rey, and Lambellerie, 2018). Yellow Fever virus belongs to the genus Flavivirus; which is inclusive of more than 60 covered or enveloped, positive/single stranded RNA viruses.…

    • 1135 Words
    • 5 Pages
    Superior Essays
  • Great Essays

    Introduction Defined by the Patriot Act of 2001, critical infrastructures are; "systems and assets, whether physical or virtual, so vital to the United States that the incapacity or destruction of such systems and assets would have a debilitating impact on security, national economic security, national public health or safety, or any combination of those matters" (107th Congress, 2001). The National Infrastructure Protection Plan: Partnering for Critical Infrastructure Security and Resilience (NIPP 2013) guides the national effort managing risks that may threaten our Nation’s critical infrastructure. The NIPP identifies 16 critical infrastructure sectors (derived from PPD-21) which are vital to our Nation. These critical infrastructures…

    • 1537 Words
    • 7 Pages
    Great Essays