Introduction The influenza virus is an RNA virus has an envelope that included members of the family Orthomyxoviridae. Its genome is a single negative strand segmented RNA. This virus consists of three types: A, B, and C. Influenza types A and B has eight segments of RNA, but the influenza virus type C only has 7 segments (Cheung and Poon, 2007). Influenza A virus is a virus that spread and infect many species of animals such as pigs, horses, cats, tigers, leopards, marine mammals and fowl and including
Influenza or flu is caused by RNA viruses of the family orthomyxoviridae, that affects the nose, throat, and lungs- the respiratory system. The common symptoms are: fever and respiratory problems, such as cough, sore throat,stuffy nose, as well as headaches and muscle aches. Influenza viruses are spread mainly by droplets made from people coughing, sneezing or talking while having the flu. These droplets can land in the mouths or noses of people or can inhaled into the lungs. It is least common for
Influenza is caused by an RNA virus from the Orthomyxoviridae family (that consists of the genera influenza A, B, and C). Human influenza A and B viruses cause seasonal epidemics almost each winter within the United States. Influenza type B infects humans only, therefore it is unable of undergoing a mutation. Pandemics are caused solely by influenza A strains. The emergence of a new and completely different influenza virus to infect people will cause an influenza pandemic. Influenza kind C infections
Foodborne diseases are among the most widespread public health problems. Yet only a small proportion of these illnesses come to the notice of health services, and even fewer are investigated. In developing countries even fewer cases are counted, primarily because of poverty and lack of resources for food safety management and food control services. In spite of underreporting, increases in foodborne diseases in many parts of the world and the emergence of new or newly recognized foodborne problems
INFLUENZA Description Influenza, commonly known as the flu, is a highly contagious disease (caused by influenza viruses of varying forms) that has been around for more than 2,500 years. There are three main types of the virus; types A, B and C. Once the minuscule particles of the virus are inhaled, they locate their target cells using the proteins that surround the nucleus. These contain genetic material, which then trigger the target cells to produce more virus particles. Once these cells spread
Influenza The word influenza originated from Italy people thought that the planet, stars, and moon caused the flu; they believed that powerful forces created unexpected sickness. The flu is contagious and effects breathing primarily infecting the nose, throat, and lungs. The flu varies in the degree of severity and at worst can lead to death. The flu is transmitted through the air via droplets, people spread through talking, sneezing and coughing. The Flu can be through touching an infected area
swine flu virus is not categorized in a kingdom, phylum, or class because it is not considered to be living. However, it is part of the order of mononegavirales which includes all viruses that can infect any of the six kingdoms. The family is orthomyxoviridae which is all spheri... ... middle of paper ... ...nza/variant influenza viruses . Retrieved from http://www.cdc.gov/flu/swineflu/ Marshall, M. (2009, October 29).Timeline: The secret history of swine flu. Retrieved from://www.newscientist
Influenza is an acute respiratory illness caused by infection of influenza A and B viruses. The disease can affect both the upper and lower respiratory tract and is often followed by systemic signs and symptoms, such as: sudden onset of fever, chills, non-productive cough, myalgias (muscle pain), headache, nasal congestion, sore throat, and fatigue. (Cox et al.1998). Influenza viruses evolve continuously, challenging mammalian and avian hosts with new variants and causing complex epidemic patterns
Introduction In 1918-19 approximately 50 million deaths were a detriment of the Spanish H1N1 virus pandemic; a respiratory virus. According to the World Health Organization, the second Influenza A H1N1 pandemic in 2009 spread to more than 200 countries causing more than 18 000 deaths. Before the World Health Organization had announced the official end of the pandemic in August 2010, in July 2009 the World Health Organization sent out a phase 6 warning that H1N1 could soon be a global pandemic.