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[DOCX File]West Linn-Wilsonville School District
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8) What are two viruses that may remain in a host, in the lysogenic cycle, for long periods of time. At the bottom, or top right, c lick on NEXT – you should now see “ Reducing the Spread .” 9) What are four ways that viruses may be transmitted / spread?
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[DOC File]General Questions and Answers on 2009 H1N1 Influenza ...
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The viruses in the nasal-spray vaccine are weakened and do not cause severe symptoms often associated with influenza illness. (In clinical studies, transmission of vaccine viruses to close contacts has occurred only rarely.)
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[DOCX File]Centers for Disease Control and Prevention
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There are two influenza vaccines licensed only for persons 65 years and older: Fluzone High-Dose® (HD-IIV3) and FLUAD® (an adjuvanted inactivated influenza vaccine, aIIV3). Both are trivalent vaccines. If you were older than 65 and your workplace administers IIV4, …
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[DOC File]Alan Hinman - Centers for Disease Control and Prevention
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Antigenic shift only occurs in influenza A viruses. only nine years ago in 2009, an H1N1 pandemic was declared by the World Health Organization or WHO. In April 2009, a novel influenza type A virus, H1N1 subtype, appeared and quickly spread across North America and then the world. ... For quadrivalent vaccines that have the above three viruses ...
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[DOC File]Access Washington Home
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This means that more people may get seriously sick. Also, regular seasonal flu viruses will continue to spread and cause illness. What’s new, changed, or. Clarified. Influenza viruses are always changing and because of this, influenza vaccines are updated every year. This year there will be two vaccines: Seasonal Flu vaccine (available now)
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[DOCX File]Communicable Diseases Intelligence 2019 -Report on ...
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GISRS is a worldwide network of laboratories that was established in 1952 to monitor changes in influenza viruses circulating in the human population, with the aim of reducing its impact through the use of vaccines and antiviral drugs.1,2 The Centre in Melbourne is one of five such Collaborating Centres (the others being in Atlanta, Beijing ...
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[DOC File]Access Washington Home
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Some seasonal flu vaccines will be formulated to protect against four flu viruses (quadrivalent flu vaccines) and will be available as well to manufacturers. All nasal spray vaccines are expected to be quadrivalent, however, this makes up only a small portion of total vaccine availability.
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[DOC File]Viruses - USDA ARS
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Aug 01, 2007 · The following attenuated strains are exempt if used in basic or applied research, as positive controls, for diagnostic assay development, or the development of vaccines and therapeutics: Bacillus anthracis strains devoid of both plasmids pX01 and pX02.
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[DOC File]Facts for Parents About Autism and Vaccine Safety
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Are vaccines safe? Yes. Today’s vaccines are safer than any in history. Vaccines contain antigens, which are either live but very weakened viruses, inactivated viruses, or small parts of bacteria or viruses that prompt the body to produce protective antibodies without causing the disease.
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[DOCX File]How do vaccines affect immunity?
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Vaccines cannot overwhelm a baby’s immune system. From the moment they are born babies are exposed to countless germs (bacteria and viruses) every day through their skin, noses, throats and guts. Babies’ immune systems are designed to deal with this constant exposure to new things, learning to recognise and respond to things that are harmful.
do vaccines kill viruses

Are vaccines only for viruses