Influenz A Droplet Infection

Influenza is an infectious illness that can be spread from one individual to the next. It can be transmitted by means of saliva, nasal secretions, feces and blood. It can also be spread by coming in contact with the virus on contaminated surfaces. Influenza is responsible for an average of 36,000 deaths and for more than 226,000 hospitalizations each year in the United States. (Davidson, 2007-2009, Davis, 2007).

First of all, the name “Influenza” is derived from the Latin word for “influence”, and it is an infectious disease that is caused by the RNA viruses from the Orthomyxoviridae family:

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

Influenza viruses need to infect host cells in order to replicate. Most flu viruses are destroyed by the innate immune mechanisms involving components such as macrophages, interferons and natural killer cells, however some manage to avoid being detected by these early defence mechanisms and so are eliminated by the adaptive immune response.

Influenza, also known as the flu, is a contagious respiratory illness caused by the influenza virus that infects the nose, throat, and lungs (Centers for Disease Control and Prevention,

Influenza is not a deadly virus and does have a vaccination. One of the three types of influenza, type C, “type C infections cause a mild respiratory illness and are not thought to cause epidemics” (Types of Influenza Viruses). The other two types of influenza viruses type“ A and B viruses cause seasonal epidemics” and happen mostly when winter hits (Types of Influenza

One can claim that influenza is an infection that has victimized people from just about every generation that we have known. The term Influenza comes from the Latin word "influentia", first used by the Italians in the 1600's. It is a highly contagious infection particulary of the respiratory tract.In addition to us humans, influenza can occur in pigs, horses, and several other mammals as well as in certain wild and birds. It can also jump from specie to specie as observed in late 1997 when influenza from chickens was having its effects on people in Hong Kong. Because influenza is highly contagious and spreads easily, it has appeared in our history many a times as epidemics. Influenza is caused by an

There are there types of influenza A and C or the most severe types and B which is the most common, Luckily not the to severe. The virus works by first attaching to the outside of a host cell. It injects its RNA into the cell. Unfortunately our cells treat the RNA like they should. It translates the viral genes using the cell’s ribosomes and enzymes. Now the virus can take the cell over and use it to reproduce more viruses. Sooner or later it releases the new nauseating viruses and they search for another cell to raid.

Influenza is a highly contagious flu that is a viral infectious virus of the respiratory organ. Orthomyxoviridae is the scientific name of the Influenza virus. Some examples of the influenza virus are Influenza A, Influenzavirus B, Influenzavirus C, Bourbon virus, and Isa Virus. The types of flu A, B, and C are responsible for nearly all the Influenza disease that occurs almost every winter. Infection with type C influenza usually causes either a very mild respiratory illness or no symptoms at all. Infection with type C Influenza are usually caused by either a very mild respiratory illness, or there would be no symptoms at all. The most common host for Influenza is any ages in any lifetime. The symptoms of Influenza are fever, cough, and

The influenza virus is transmitted from human to human mainly by droplet, although there are cases of animal to human transmission. The incubation

(Silverstein: 13) There are three types of influenza, depending on their activity: type A, which is usually the cause of outbreaks; type B, which is linked to sporadic cases, and type C, which rarely causes disease reactions. (Silverstein: 54) The virus which causes influenza enters the host through the respiratory tract, and binds itself to epithelial cells. The virus causes the cell to engulf it by endocytosis, and then fuses to the wall of the endocytic vesicle, injecting the contents of the virus into the cytosol of the cell. The RNA of the virus enter the nucleus of the cell, and spur the creation of new copies of the genes. These genes, as well as new viral proteins that are created in the cell, leave the cell as fresh viruses, budding off the plasma membrane of the cell.

Influenza is a life threatening illness caused by influenza virus. It is a contagious disease of the respiratory tract causes serious infections and death around the globe usually in winter season. There are three types of influenza viruses infect humans, type A, B and C. Influenza A and B cause severe disease and major outbreaks and can be prevented through influenza vaccination. Influenza C causes common cold like illness among children. Influenza A is responsible for influenza pandemics. Influenza A and B viruses have two main proteins on the outside of virus, the haemaglutinin (H) and the neuraminidase (N) proteins and are referred as antigens as they are the structures to which our immune system responds. New strains of influenza A and B continually form because the H and N antigens change.

Influenza is a virus that causes the common cold disease or the flu. A disease and a virus however are not

Another way to contract influenza is through fomite (an inanimate object that can carry infectious disease). This is another reason why influenza is so deadly. It’s difficult to tell whether a surface contain the droplet of those infected by the virus and it’s extremely easy to create these surfaces whether by accident or on purpose. People can also spread the flu virus before showing any actual symptoms relating to the flu. Once the influenza virus enters the system, it attaches to the epithelial cells in the bronchi and trachea. The virus then goes into the lytic cycle and the end result being the destruction of the host’s cells. Symptoms of the flu includes sore throat, fever, heavy coughing, and headache. Most people often recover from the flu within one or two weeks but being affected by the flu can also lead to some fatal complications. One of the most prominent complications from the flu is pneumonia (liquid in the lung). This most often affect children and the elderly. People with ongoing diseases are also heavily affected by the flu since it weaken their immune system allowing whatever ailment to achieve maximum lethality. The flu virus weaken the immune system by forcing both antibody and cellular responses to attach to hemagglutinin and neuraminidase in an attempt to neutralize them. Since they both can evolve so rapidly, the task of completely neutralization can

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”