A virus is a small infectious agent that can replicate only inside the living cells of an organism. Viruses can infect all types of organisms‚ from animals and plants to bacteria and archaea.[1] Since Dmitri Ivanovsky’s 1892 article describing a non-bacterial pathogen infecting tobacco plants‚ and the discovery of the tobacco mosaic virus by Martinus Beijerinck in 1898‚[2] about 5‚000 viruses have been described in detail‚[3] although there are millions of different types.[4] Viruses are found in
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Amy Rogers Office Hours: MW 9-10 AM • Viruses are on the border between living & nonliving things • Have either DNA or RNA‚ never both • Often cause death of the host cell • Genus/species names not used in viral classification Compenents of a virus (lipid bilayer) Viral components: Nucleic Acid • Viral genomes can be either DNA or RNA • This genome‚ once inside a host cell‚ directs synthesis of new viral proteins‚ and also replication of new viral genomes • Viral genomes come in all kinds:
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Ebola Virus— What type of virus is it? How it spreads? What is being done to contain its spread? What treatments are available? Ebola genome is a single-stranded RNA approximately 19‚000 nucleotides long. It encodes seven structural proteins such as nucleoprotein‚ polymerase cofactor‚ transcription activator‚ RNA- dependent RNA polymerase. The Ebola virus is a Filovirus. These virus types cause fever or cause bleeding inside and outside the body when having a very high fever. Ebola
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rabies virus is in the family Rhabdoviridae in the Mononegavirale order of viruses. The rabies virus is usually bullet-shaped and is made of a long single-stranded spiral chain of RNA. The virus envelope is made of matrix protein and is studded with glycoproteins. 3. People usually contract rabies after they are bitten by an animal that has been infected with the rabies virus‚ though it has been shown that in rare cases rabies can infect people who just touch infected animals. The virus spreads
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no cure or not even a simple treatment. The unfortunate ones lay on their deathbed‚ crying out for mercy or pray for a miracle to happen. Their bodies slowly deteriorate and eventually die. The Ebola Virus is held responsible for the lives of thousands of people. Audience motivation: The Ebola virus is the T-Rex of microbes. I hope you will enjoy and may be frightened on what I’m about to tell you. Establish credibility: I want to work in the health field‚ so I’m always curious and want to learn
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The function of a capsid‚ in virus biology‚ is to serve as a protective outer layer that protects the genetic material of the virus from the host’s defensive cells. The capsid is made up of proteins. The nucleic acid is what is contained within the capsid‚ which is a group of long‚ linear macromolecules‚ consisting of either DNA or RNA. There are two different cycles in which the virus uses a host cell to replicate and reproduce itself. These two cycles are known as the lytic cycle‚ and the lysogenic
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A dangerous virus strong as Ebola is ready to spread throughout America and it is a dangerous airborne virus that could cause Outbreak. After an African monkey carrying a deadly Motaba virus enters U.S‚ and outbreak occurs in a California town. The Virus is lethal and able to kill human beings less than twenty-four hours and a team of doctors from Center of Disease Control try to control the disease. Disease experts Colonel Sam Daniels and his ex-wife Colonel Robbie Daniels try to control the spread
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“Ebola Virus: Glycoprotein Modification Study” Name Class School Date Abstract Retroviruses are a family of enveloped RNA viruses that are defined by their common characteristics in structure‚ replication properties and composition. These viruses are important in research in many different areas of science‚ such as biology‚ genetics‚ medicine‚ cancer‚ and biotechnology. The process of pseudotyping for retroviruses‚ in particular‚ allows researchers to investigate the
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Virus and Bacteria Virus - A virus is a capsule of protein that contains genetic material. A virus cannot reproduce on its own; it must infect a living cell to grow. Bacteria - Bacteria are one-celled organisms that live on their own. They can multiply and reproduce by subdivision Bacteria and viruses cause many of the diseases we are familiar with and may sound synonymous; they are greatly different from each other. [pic] o They differ greatly in size. The biggest viruses are only as large
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Hepatitis A virus infection is transmitted in the fecal oral form or through vertical transmission in preganancy. HAV presents with flu like symptoms‚ low grade fevers‚ nausea‚ anorexia‚ and vomiting. Pharyngeal erythema is not a common finding seen in HAV infection
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