Why are viruses so contagious
[DOCX File]Hospitality - hygiene
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unlike bacteria, viruses do not multiply or produce toxins in food, so food items merely act as vehicles for their transfer for example norovirus, hepatitis A Putting the theory into practice The following questions are from past years’ NSW HSC examination papers
[DOC File]The Deception of Virology & Vaccines — Why Coronavirus Is ...
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Viruses are not alive and viruses are not contagious. The fear behind Coronavirus, for instance, is wholly unwarranted. Forget everything you think you know about viruses and bacteria.
[DOCX File]Centers for Disease Control and Prevention
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The main points are that the latent, incubation, and contagious period durations are each sampled from discrete distributions, with mean periods of 1.2, 1.9, and 4.1 days, respectively, leading to a mean serial interval (generation time) of 3.95 days, the sum of the mean incubation period and half of the average contagious period (Table S1).
[DOC File]January 4, 2006 FEMA Emergency Management Higher …
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Infected individuals remain contagious for 2-7 days (longer in children!). ... researchers believe they've discovered one reason why the infection can prove so deadly. Experiments with human cells have found the H5N1 virus can trigger levels of inflammatory proteins called cytokines and chemokines that are more than 10 times higher than those ...
[DOC File]Section 4: Vaccine Safety Public Health and Clinical ...
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It does not seem to be contagious. It was first described in 1967 by Dr. Tomisaku Kawasaki in Japan. measles Measles is an infectious disease caused by a virus. It spreads easily from person to person. The main symptom of measles is an itchy skin rash. The rash often starts on …
[DOC File]Still, the authors urge that the 2009 H1N1 virus continue ...
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Infection with certain avian influenza A viruses (for example, some strains of H5 and H7 viruses) can cause widespread disease and death among some species of wild and especially domestic birds such as chickens and turkeys. Pigs can be infected with both human and avian influenza viruses in addition to swine influenza viruses.
[DOCX File]Pandemic Influenza Electronic Exercise Tool
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Novel influenza A H7N7 virus originated in Canada in early July, 2010. The virus spreads in the same way that regular seasonal influenza viruses spread, mainly through the coughs and sneezes of people who are sick with the virus, but it may also be spread by touching …
[DOC File]Instructor Notes, Session 7, Section 2 Public Health
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Note that social distancing has taken on new meanings recently, to include increasing the distance between individuals when talking (at least 3-6 feet), the use of N95 disposable particulate respirators or surgical masks on people who are ill or suspected of being contagious, and the use of numerous strategies to maintain hand sanitation.
[DOCX File]Surgeon General's Report on Acquired Immune Deficiency ...
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AIDS virus attacks a person's immune system and damages his/her ability to fight other disease. Without a functioning immune system to ward off other germs, he/she now becomes vulnerable to becoming infected by bacteria, protozoa, fungi, and other viruses and malignancies, which may cause life-threatening illness, such as pneumonia, meningitis, and cancer.
[DOC File]FACT SHEET – Pandemic Flu
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Why do scientists have to develop a completely new vaccine for H5N1 bird flu? H5N1 is a totally new virus to humans. This virus is not like other flu viruses that current flu vaccines target. The H5N1 virus is so dangerous that scientists working on vaccines must follow very strict safety rules. Frequently Asked Questions About Bird Flu
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