A. Is a Virus Alive? 1. Viruses are segments of nucleic acids contained in a protein coat. 2. Pathogens are agents that cause disease. 3. Viruses do not grow‚ do not have homeostasis‚ and do not metabolize‚ therefore scientists don’t consider them to be living. 4. Discovery of Viruses i. Scientists filtered bacteria from the sap of infected plants‚ and were surprised to find that the filtered sap could still cause uninfected plants to become infected. ii. In 1935‚ Wendell Stanley of the Rockefeller
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solutions to slow down the rise of resistance. Things that we can do are to not use antibiotics unnecessarily. This seems to be a huge problem. People tend to want to take antibiotics for colds and flu when in fact they do nothing for them as they are a virus. If you are prescribed antibiotics you should take them until the prescription is gone. If you start feeling better after a few days and discontinue taking the antibiotics the bacteria it was prescribed to fight is still present and starts to survive
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Introduction-Chickenpox is a common childhood skin disease caused by a viral infection called varicella-zoster virus. Chickenpox is less common in the United States due to universal vaccination with the varicella virus vaccine‚ though it still occurs in populations that are not routinely vaccinated. The varicella-zoster virus is similar to herpes simplex virus in many respects. The virus is spread through air droplets or direct contact with active lesions. Most cases of chickenpox arise between the
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2.2 Aetiological agent: Classification and characterisation The monkeypox virus is a member of the genus orthopox (family Poxviridae). Other members include cowpox‚ vaccinia‚ and variola (smallpox) viruses. Poxviruses are the largest vertebrate viruses known. The virions contain a linear double-stranded deoxyribonucleic acid (DNA) genome and enzymes that synthesise messenger ribonucleic acid (RNA). The viruses multiply in the cytoplasm of the host cells. The poxvirus family consists
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nonliving? Scientist all over are debating whether or not a virus is in fact a living organism. There are many different opinions about this touchy topic from many different scientists. My job was to read through all of these different opinions and decided which side I agreed with. Do I think that viruses are living or nonliving? The answer to that question is‚ I absolutely believe viruses are nonliving and ill tell you why. Just because a virus seems alive doesn’t mean it is alive. After all‚ it’s
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something that we need some of‚ it needs a warmth‚ moisture‚ time and food in order to multiply‚ which in the right conditions they multiply quickly. Viruses need a living host in order to survive‚ they don’t respond to antibiotics and new strains of virus are developing all the time. Fungi are moulds and yeasts‚ they need a warm and damp environment to survive‚ much like bacteria. Parasites feed off the host it’s inhabiting‚ it uses the nourishment from the flesh to survive. 2. Identify common illnesses
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The Bullying Virus Every day‚ a sinister virus plagues our schools‚ striking fear into the hearts of innocent children. This lethal disease is identified by the common term – bullying. Studies show that 1 in every 4 students is bullied on a day-to-day basis. Another study reports that 9 out of every 10 LGBT students face harassment at school and online. Bullying contributes to a variety of concerns afflicting the student body today‚ including but not limited to a higher suicide
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Infectious Mononucleosis and Community Health Nursing Infectious mononucleosis (IM)‚ or "mono‚" is a communicable disease that is most commonly caused by the Epstein-Barr virus (EBV). EBV is one of the most common human viruses found all over the world‚ and most people will become infected with it at some point in their lives (Centers for Disease Control and Prevention [CDC]‚ 2014a). However‚ not all people infected with EBV will develop IM. By understanding the epidemiologic triangle of IM and
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bacteria to viruses‚ there are many pathogenic microorganisms that may be found in the oral cavity. As a dental assistant‚ we should be capable of identifying an abnormal condition in the mouth and making sure to inform the dentist about it. A virus that is common and may be fairly easy to recognize is Type 1 herpes simplex. This type or herpes shows up as a cold sore or a cluster of small blisters usually on or around the lips. They vary in size and usually last about a week or two‚ but symptoms
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Nursing Ashley Wigglesworth Genital herpes is a viral infection that causes lesions or sores in the genital area and is spread through sexual intercourse or by touching a sore and then touching another part of your body; it is a highly contagious virus. Often it does not present with symptoms‚ or produces very mild symptoms such that the infected individual is unaware they have it. When symptoms are present they may include: pain or itching‚ small red bumps‚ tiny white blisters‚ ulcers from the
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