A Case Study on Infectious Diseases

According to Center for Disease Control (CDC), influenza viruses are divided into three types, designated as A, B, and C. Influenza type C usually only causes either very mild symptoms or no symptoms at all. Types A and B, however, are responsible for epidemics of respiratory illnesses that can result in hospitalization, or even death. Influenza is constantly changing over time by mutations. This continual change allows the virus to evade the antibodies that were meant to kill it. A host infected with influenza virus develops antibodies against that virus; as the virus changes, the "first" antibody no longer recognizes the "newer" virus and infection can occur because the host does not recognize the new flu virus as a problem until the infection is well under way. The first antibody developed may, in some instances, provide partial protection against infection with a new influenza virus. According to Medicine Net.com, In 2009, almost all individuals had no antibodies that could recognize the novel H1N1 virus immediately. It quickly spread throughout the world so fast that the WHO declared this new flu strain (termed novel H1N1 influenza A swine flu). There are currently four main strains of influenza circulating worldwide. Three of the viruses are type A, and one is type B. Type A viruses are divided into subtypes based on the differences in two viral proteins called hemagglutinin (H) and neuraminidase (N). The three subtypes of influenza A are A(H1N1), A(H3N2), and A(H5N1). The reason for several strands of type A are because of the two kinds of change influenza A

The Government has left the delivery of flu shots to private doctors and centers such as pharmacies. The Government has in its place fixated on supporting manufacturing. In former years the government has found inadequate supply of vaccines, so the effort to provide higher production should yield a higher usage amount.

Influenza is very contagious and spreads rapidly from person to person. Influenza causes worldwide yearly epidemics. According to World Health organization Influenza affects 5-15% world’s population and resulting in 500,000 deaths yearly. Ottenberg stated that, in United States, an average of 200,000 were hospitalized and 36,000 died each year from influenza complications. Influenza is the sixth leading cause of death among US adults and is related to 1 in 20 death in persons older than 65 years. Disease control and prevention estimates indicate that infections like H1N1 which is one of the types of influenza, have resulted in an estimated 42 to 86 million cases and 8520 to 17620 deaths. As I mentioned earlier that infections like

Seasonal influenza is a major cause of mortality and morbidity in the industrialized world. The United States alone averages more than 23,000 influenza-associated deaths annually (Cortes-Penfield, 2014). Everyone is given the option to receive the flu vaccination each year. The vaccine is offered in health care facilities, clinics, and pharmacies around

In recent years encouragement to get flu shots has become a yearly mantra. Elderly, children six months to two years, health care workers and immune-deficient people are urged in the strongest terms to go to their doctors or clinics and get a flu shot. This group encompasses about 98 million people. In the fall of 2004 this was in the forefront of American and to some extent the Western World media with the shortage of this flu seasons vaccine. Current medical wisdom states that flu shots are safe, effective and prevent mortality. A recent study published by The Journal of the American Medicine Association (JAMA) has brought the current wisdom into question. On February 14, 2005 JAMA

Influenza, an innocent little virus that annually comes and goes, has always been a part of people’s lives. Knowing this, one would not believe that it has caused not one, not two, but three pandemics and is on its way to causing a fourth! The Spanish flu of 1918, the Asian flu of 1957, and the Hong Kong

Influenza, normally called “the flu”, the influenza virus causes an infection in the respiration tract. Even though the influenza virus can sometimes be compared with the common cold. It also can cause a more severe illness or death. During this past century, pandemics took place in 1918, 1957, and 1968, in all of these cases there where unfortunately many deaths. The “Spanish flu” in 1918, killed approximately half a million people in the United States alone. It killed around 20 million worldwide. The “Asian flu” in 1957, in the United States their 70,000 people died. In 1968 the “Hong-Kong flu” There where 34,000 deaths in the United

RESULTS: Potential reasons for rejection of flu vaccine was the swine flu pandemic of 2009-2010 where 200 adults and children were diagnosed with narcolepsy after flu vaccination. The media played a big role in anti-vaccine persuasion. As a result, pharmaceutical industry must ensure the most utter importance in creating a tested and uncontaminated vaccine for public use.

Avian influenza is a disease that has been wreaking havoc on human populations since the 16th century. With the recent outbreak in 1997 of a new H5N1 avian flu subtype, the world has begun preparing for a pandemic by looking upon its past affects. In the 20th Century, the world witnessed three pandemics in the years of 1918, 1957, and 1968. In 1918 no vaccine, antibiotic, or clear recognition of the disease was known. Killing over 40 million in less than a year, the H1N1 strain ingrained a deep and lasting fear of the virus throughout the world. Though 1957 and 1968 brought on milder pandemics, they still killed an estimated 3 million people and presented a new

There are three types of the influenza virus: Type A, B, and C. Types A and B are contracted and spread by human-to-human transmission.

Influenza A (H1N1) is a virus with multiple strains that causes human influenza. The H1N1 are endemic in humans and causes influenza-like illness during the flu season. In 2009, when the influenza virus emerged, it highlighted the importance of having infrastructures to conduct research. This would allow public health officials to manage patients for emerging viruses. Much of the surveillance systems for influenza are laboratory-based or anti-viral resistance monitoring. The lab base focuses on variant virus strains for vaccination. Anti-viral resistance includes clinical data on hospital or outpatients with no follow up. Much of the data from the previous cohort studies on the clinical outcomes and prognostic factors of influenza-infected

Influenza is one of the most contagious illnesses caused by airborne viruses. I can lead to mild or severe illness and even death. Influenza can come suddenly and is marginally different to a ‘Cold”. The virus can cause infections of the lower respiratory tract (lungs) and the upper respiratory tract (throat, nasal). Influenza is disease that may cause symptom such as the following; fever (high body temperature), sore throat, muscle or body aches, cough, Headaches, runny or stuffy nose, fatigue/tiredness (CDC, 2016). it belongs to “Orthomyxoviridae” family of infections, “myxa” meaning ‘mucus’ in Greek. There are three major types of influenza that may also be addressed as different terminologies, such as flu

H1N1 is a new influenza virus causing illness in people. This virus was first detected in residents of the United States in April of 2009. This virus is contagious and is spreading from person to person worldwide just as seasonal flu viruses spread. According to Up To Date (2009), the month of July in the United States contained 43,000 confirmed cases of H1N1 reported from 55 states and territories. The World Health Organization (WHO) raised its pandemic alert level to the highest level, phase 6. The characteristics of pandemics are their rapid spread to all parts of the world. According to American Medical

During this assignment, I will be exploring the epidemiology of an infectious disease found on the Public Health Agency of Canada website known as Pertussis. This particular disease is also known as Whooping Cough due to the sound made while inhaling during a coughing spell. The information contained in this report will be taken from the Public Health Agency of Canada’s website which can be found at http://www.phac-aspc.gc.ca.

With a huge number of victims, 80 to 100 million, since 1918, the influenza is considered as one of the most pandemic diseases ever. There are three types of influenza virus: influenza virus A, influenza virus B, and influenza virus c. These are a subtypes of the virus family orthomyx-oviride. The types B and C do not cause pandemic diseases while type A does. The type A classified into three main subtype H1.N1, H1.N2, and H3.N2. The (H.N) refers to the two kinds of proteins on the surface of the virus (hemagglutinin and neuraminidase). The difference in numbers is due to the difference in protein variability. A H1.N1 virus which is widely known as Spanish flu is the only type that can transmit from human to human. The H5.N1, or “bird flu”