What are the epidemiological characteristics of infection with avian and/or swine fl u as compared to yearly fl u? What about these viruses causes such public concern?
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What are the epidemiological characteristics of infection with avian and/or swine fl u as compared to yearly fl u? What about these viruses causes such public concern?
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- For the Coronavirus. Describe its causation in terms of agent, host, and environment. Agent: What is the primary agent? How would you classify this agent (e.g., biological, physical, chemical)? Identify factors that favor the agent 2. Host: Identify host factors that contribute to disease. 3. Environment: Identify environmental contributors.The following statements are true of arboviruses, except a. arboviruses show a peak incidence when the arthropod is actively feeding and reproducing. b. humans may be accidental reservoirs or maintenance reservoirs. c. fever and rash are common outcomes of arboviral infection. d. West Nile virus is not considered to be an arbovirus.In the United States, hantavirusesa) are limited to southwestern states.b) are carried only by deer mice.c) infect human beings with a fatality rate of about 30%.d) were first identified in the early 1970s.e) are contracted mainly in bat caves.
- In 1988 Harbor seals (Phoca vitulina) in the Baltic Sea contracted phocine distemper virus. Approximately 95% of seals were infected (β=0.95), and 60% died (failed to recover) during this outbreak. Based on these numbers, what was the R0 for phocine distemper?Considering that CMV infects 50% of the adult population in the United States and 100% of the population in many other countries, why is there so little Cytomegalovirus disease in the world?Which of the following viruses causes chronic persistent infections? a. hepatitis B c. parvovirus b. smallpox d. varicella-zoster virus
- What will happen if there is a shortage of chemical reagent used to test coronavirus? How will it affect the individuals and community?Lassa virus is endemic in which of the following countries? a. Nigeria b. Nicaragua c. India d. Liberia e. Peru f. Japan g. Sierra LeoneWhy is H5N1 avian influenza considered a majorthreat to public health?
- In December 2019, a family in Asia detected signs and symptoms of pneumonia. Laboratory diagnosis detected a virus belonging to the Group of Betacoronaviruses. Within a week, several people within the community began experiencing similar symptoms. It gradually spread to the entire city. In the field of Microbiology, this city may be experiencing a/an ………………………………….……. If this infection spreads globally, it may be deemed a ……………………………………….... If the infection is contracted by an individual who travelled to West Africa, the infection will be known to have been ……………………………………………. And this person will be a/an …………………………………………….. If this person visibly presents with visible signs of the infection, He will be known to be ……………………………………………………… Other individuals who incubate the pathogen but do not show any signs and symptoms of the disease are known as …………………………………………………………………………..For each of the following situations, identify classification of disease it reflects: A. EpidemicB. SporadicC. EpizooticD. PandemicE. Endemic 7. 22 cases of Legionellosis occurred within 3 weeks among residents of a particular neighborhood(usually 0 to 1 per year)8. The average annual incidence of Community Acquired Pneumonia is 134 cases per 100,000population since 2011.9. The common cold is described to be commonly present in Baguio City10. Single case of Histoplasmosis was diagnosed in a community11. About 60 cases of gonorrhea are usually reported in City A per week, slightly less than the nationalaverage12. Over 20 million people worldwide died from influenza in 1918 – 191913. Over 44 out of the 80 provinces in the Philippines have a usual prevalence of Lymphatic Filariasis14. The recent flash flood was pinpointed as the cause of the rising cases of anxiety among residentsaging 30-50 years old, whether male or female15. A case of Capillariasis (usually endemic in locations near…You have a petri dish containing 1 x 106 adherent cells. You have a vial ofpoliovirus with a concentration of 2.8 x 107 pfu/ml. How much volume of the stockvirus should you add for an MOI of 1.0? MOI means: multiplicity of infection