that information to design a drug that prevents the infective agent from being able to do what it does. Influenza viruses are continually changing into new strains. The proteins in their outer layer change continually. Our bodies learn to defend against one influenza virus‚ but the next time we are infected with an influenza virus it is different from the previous one and we develop influenza again‚ and again. This not only effects our health but has a huge economic impact due to reduced productivity
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key threat to wildlife and human health. Influenza is one of the most common diseases‚ causing millions of severe illnesses and huge number of deaths per years. Recent concerns were focused on H5N1 avian influenza virus that was first isolated in a domestic goose in China in 1997 due to its high case of death rate (Lucchetti‚ Roy & Martchvae‚ 2008). Influenza viruses are single-stranded RNA viruses of which 3 types (A‚ B‚ and C) are recognized; only influenza A and B viruses occur in highly pathogenic
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Every year influenza affects thousands of people globally‚ causing them to fall ill‚ and may even lead to death. Each season‚ there are new variations to the vaccine for the flu for that specific year. During flu season‚ there are three different types of viruses that can affect humans; Influenza A‚ B‚ and C. From these three‚ only influenza A and B strains are used in vaccines. The influenza C strain is not used in vaccines because it only causes mild illness and does not lead to epidemics. In my
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and Galen. Prior to talking about Influenza itself‚ John M. Barry describes the state of science‚ politics‚ and medicine throughout history. American medicine was far behind European medicine‚ and not until the late nineteenth century‚ did medical science transform from the most underdeveloped to one of the best in the world. After introducing a prologue presenting Paul Lewis and his need to find the pathogen and cause for the disease he believed to be Influenza‚ Barry moves on to explain why the
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The Search for Better Health 1. What is a healthy organism? Discuss the difficulties of defining the terms ‘health’ and ‘disease’ Health is a state of physical‚ mental and social well-being and not merely the absence of disease of infirmity. Disease is any condition that affects the proper functioning of a body. It is any disturbance of structure or function of the body of an organism generally associated with characteristic of symptoms and structural changes to the body. These
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Avian Influenza (Bird Flu) An influenza pandemic is a global outbreak of disease that occurs when a new influenza A virus appears or "emerges" in the human population‚ causes serious illness‚ and then spreads easily from person to person worldwide. Pandemics are different from seasonal outbreaks or "epidemics" of influenza. Seasonal outbreaks are caused by subtypes of influenza viruses that are already in existence among people‚ whereas pandemic outbreaks are caused by new subtypes or by subtypes
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INFECTION CONTROL Pathogen- Infectious agent Colonization- If microorganism is present or invades host‚ grows and/or multiplies but does not cause infection. Communicable disease- if infectious disease can be transmitted from one person to another. -Symptomatic-if pathogens multiply and cause clinical signs/symptoms. -Asymptomatic- if no s/s are present *CHAIN OF INFECTION: 1. An infectious agent or pathogen 2. A reservoir or source for pathogen growth 3. A portal of exit from the
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Swine influenza‚ also called pig influenza‚ swine flu‚ hog flu and pig flu‚ is an infection caused by any one of several types of swine influenza viruses. Swine influenza virus (SIV) or swine-origin influenza virus (S-OIV) is any strain of the influenza family of viruses that isendemic in pigs.[2] As of 2009‚ the known SIV strains include influenza C and the subtypes of influenza A known as H1N1‚ H1N2‚ H2N1‚ H3N1‚H3N2‚ and H2N3. Swine influenza virus is common throughout pig populations worldwide
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are due to acute exacerbations‚ and the influenza virus is a common cause of these episodes. In their prospective study‚ a group of patients with diagnosed COPD was classified into categories based on FEV1 levels to determine severity of disease (mild‚ moderate‚ or severe). ARI and AECOPD‚ as noted by outpatient visits‚ hospitalizations‚ and the need for mechanical ventilation‚ were recorded for these patients for one year prior to receiving the influenza vaccination and for one year after the vaccination
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1.0 Purpose The purpose of establishment of this report is to obtain an approval from The President of Asian Youth Ambassadors Network Bhd for the company to participate in giving speech to students at a secondary school on their Co-Curriculum Day. 2.0 Topic It had been reported lately that swine flu cases has occurred in Malaysia. Thus‚ I feel it is essential for me to give a speech on topic ‘Steps to Prevent the Widespread of Swine Flu in Malaysia’. 3.0 Objective The objectives of delivering
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