Flu is an infectious disease that can be transmitted from one individual to another. It can be transmitted through saliva, nasal secretions, stools and blood. It can also be spread by coming into contact with the virus on contaminated surfaces. Influenza causes an average of 36,000 deaths and more than 226,000 hospitalizations each year in the United States. (Davidson, 2007-2009; Davis, 2007). My goal in this article is to explain how flu vaccines are made, how long it takes to create them, and when they will be ready for distribution for the upcoming flu season. I will also present exciting new research that could provide a newer, faster method for manufacturing flu vaccines, allowing vaccines to be ready and available in less than eight months. Influenza viruses are divided into three classes. These are viruses A, B and C. Influenza viruses A and B are the most virulent and responsible for influenza epidemics each year. The influenza C virus, on the other hand, causes only very mild respiratory infection, if any symptoms, and does not pose a serious threat to public health. The purpose of receiving an annual vaccine is to prevent the spread of infections. Because flu outbreaks fluctuate, it is recommended that individuals get a flu vaccine every year, especially those who are at high risk of developing serious complications from flu infection. (Davidson, 2007-2009, Davis, 2007). Vaccines are created using several different methods. However, all vaccines share a similar general goal. This involves weakening the virus or bacteria in a way that allows the recipient to develop an immune response against the virus while avoiding any paper...... middle of paper...... uh, 2007) . Causes, symptoms, treatment, vaccines and types of influenza. MedicineNet.com. Retrieved March 30, 2011 from: http://www.medicinenet.com.Offit, Paul A. MD. (March 2008). An overview of each vaccine: the flu vaccine. Children's Hospital of Philadelphia. Retrieved March 30, 2011 from: http://www.chop.edu.Tenpenny, Sherri J., Dr. (June 8, 2008). What you need to know about new flu vaccines. The National Health Federation. Accessed April 18, 2011 at: http://www.thenhf.comKui Soon, Lee, doctor. (April 9, 2010). Culture of plant and animal tissues. The benefits and limitations of tissue culture for future medical progress. University of Malaysia Sarawak. Retrieved March 30, 2011 from: http://www.scribd.com/doc/29724574/ANIMAL-TISSUE-CULTURE-The-Advantages-Limitation-of-Tissue-Culture-towards-Medical-Advancement-in-the-Future.