Vaccine For The West Nile Virus

West Nile Virus is known as an arthropod-born virus, or an arbovirus, and are transmitted and sustained within blood feeding arthropods, such as the mosquito. The disease, while having no apparent effect on the host, is then transmitted as the mosquito takes a blood meal. As the source of infection, the mosquito or other blood feeding arthropod is known as a primary vector. However, because the life cycle of the mosquito is reletively short an additional host is needed to maintain the life cycle of the virus.

West Nile Virus (WNV) was originally detected from a woman in Uganda in 1937. WNV first appeared in the United States in 1999 in New York which was the first incident in the Western Hemisphere. WNV is a mosquito-borne virus (arbovirus). It is in the flavivirus family. WNV is a neurotropic virus. WNV is a member of the Japanese encephalitis virus. Severe encephalitis outbreaks in humans have been escalating. The means by which the virus gains access to the brain (also known as neuroinvasion) seems inadequately understood. Suggestions of the hypothesis of WNV leans towards the concept of blood-brain barrier disruption and retrograde axonal transport (Suen et al., 2014)

Vaccinations play a very large part in the prevention of diseases spreading. When enough people, 95% according to the CDC, have been vaccinated, the other 5% not vaccinated are protected through herd immunity (Kluger). This term is often used in discussion with

Birds are the main start of the Virus. They pass it on the the mosquitoes, so the birds are not directly giving the virus to anyone but the mosquitoes (Indiana). The most common way to get The West Nile virus is by mosquitoes. They will bite the skin and the bite can either become infected or the mosquito could have the virus before it bit the person, causing them to be infected no matter what. It cannot be transmitted from person to person or animal to animal, or by handling and working with infected birds. Although it can be transmitted by blood transfusions, or by mother to baby during pregnancy, the virus may not get passed on without the bite of a mosquito

Herd immunity is essential in a community where people are unable to be vaccinated. The greater the quantity of people that are immune to a disease, the lower the chance of someone who is vulnerable contracting said disease. Whooping cough is an excellent example of a vaccine that strongly relies on herd immunity. With whooping cough, babies are particularly at risk of infection, therefore it is essential that immediate family members such as the; mother, father and grandparents are all immunised before coming into contact with the

Those who cannot be vaccinated or for whom vaccines are not effective rely on the concept of “herd immunity” to protect themselves; it is a social responsibility to get vaccinated in order to protect the rest of the population. There are many people in Canada who are completely unable to be vaccinated– people without a fully-functioning immune system, people undergoing chemotherapy treatment, people with HIV, newborn babies, and the elderly. However, when a certain portion of a community is immunized against a contagious disease, the other members of the community are protected against that disease because of “herd immunity”– if 95% of the population is vaccinated, the disease cannot spread

The main point of the press release is to notify the public that the West Nile Virus has surfaced and is active. One of the sub-points is to inform the public of the current case and the number of cases over the years of people who have been infected with the West Nile Virus. Another sub-point is to give the description and signs of the West Nile Virus. Another sub-point is to notify the public where the West Nile Virus is coming from. Another sub-point what is causing the mosquitoes to breed and how to prevent the breeding of the mosquitoes to notify the public that there are two types of West Nile Virus. The West Nile encephalitis and the West Nile poliomyelitis are the two viruses the press release also notified the public of the signs and symptoms of the west Nile virus. What to do and who to contact once bitten the press release gives a statistic of number of cases from 2002 to 2011 (2012). The press release also notifies the public who is at the highest risk to becoming ill with this type of virus. The press release also gives other website to seek out more information regarding the West Nile Virus.

The original definition of herd immunity pertained to the protective effect that ensued when a population contracted and recuperated naturally from infections. Natural immunity lasts a lifetime whereas vaccine generated immunity does not. There is no question that a disease outbreak can happen in a non-immune population, if a virus is introduced there, but the notion of herd immunity as it is erroneously applied to vaccines is being used to maneuver using disinformation and fear to compel the public into consenting to receive vaccinations contrary to their uninformed will.

Eighty to ninety percent of the population needs to be vaccinated to prevent the potential spread of a disease (percent depends on the infectiousness of the disease). Another valid reason to vaccinate oneself is to create a secure blanket of immune people to protect the unfortunate individuals without the choice of becoming vaccinated. The strategy of protecting others who have not received vaccinations is called herd immunity, which is a more essential reason to become vaccinated compared to only protecting oneself. Those who cannot receive vaccinations are people that have severe allergic reactions to the preservatives in vaccines and younger children. In a Ted Talk, Romina Libster explains the importance of herd immunity, “People who are

Additionally, the human population develops a ‘herd immunity’ to a certain virus or disease. Herd immunity occurs when majority of the population maintains immunity to a particular disease. This, in turn, protects that small percentage of the population that have not received vaccinations.

Living in an environment where we are prone to many viruses, it’s very important that one take the proper precautions or considerations to control the risk of getting affected. However, when utilizing the ability of not becoming infected, one may question the fact weather there’s an actual effective form of prevention or not. To clarify the uncertainty, over many years one of the most strategic methods that have been used for the control and preventions of viruses are vaccinations. A vaccination takes advantage of one’s body natural ability to primarily learn how to eliminate almost any disease causing germ or microbe that affects it. Therefore vaccinations are considered one of the most effective ways to prevent severe outcomes initiated by viruses.

Shen, K. A, Mead, S. P, and Beard, B. C. 2011. The Lyme Disease Vaccine- A Public Health Perspective. Oxford University Press. Volume 52: s247-s251.

When children who have been vaccinated do contract a disease, despite being vaccinated against it, they usually have milder symptoms with less serious complications than an un-vaccinated child that gets the same disease. It is true that some children who receive vaccinations may still become ill when exposed to other disease-ridden children. Research shows that 70-90% of the entire population must be vaccinated to attain “herd immunity”, “the resistance of a group to attack by a disease to which a large proportion of the members are immune.” (Farlex, 2012) When herd immunity is accomplished the spread of the disease can be averted throughout. If all parents were to take proper responsibilities and keep their children’s immunizations up-to-date, herd immunity would be achieved against all 16 of the major life threatening diseases.

In contrast, a positive aspect of many people having vaccinations is herd immunity. Herd immunity is the occurrence where a large proportion of a specific population is vaccinated to provide them immunity, and as a result, it also gives some protection to the people of the population who have and yet developed immunity. This happens as the a large group of vaccinated individuals are protected from a virus and creates difficulty for the it to spread because there is only a small percentage of the population left that could be infected by the disease. It is a very crucial aspect of immunity for the community as the people who cannot receive vaccinations (i.e. people with weak immune systems, very young children and patients who are too ill)

The term "herd immunity" first appeared in a paper published in 1923, entitled “The Spread Of Bacterial Infection - The Problem Of Herd Immunity" (Topley & Wilson, 1923). Herd immunity refers to the protection of populations from infection, which is brought about by the presence of immune individuals (Anderson & May, 1985). Herd immunity occurs when the proportion of people in a population that has immunity to a pathogen is so high, the pathogen cannot find enough susceptible hosts to infect and consequently can no longer survive (Coico & Sunshine, 2015).