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Why are control cultures necessary in evaluating disinfectants?What factors can influence the activity of a disinfectant?
Koch's postulates and his contribution to microbiology.Describe in 1-2 paragraphs Koch's Postulates
Why are viruses not living organisms.Viruses are typically not classified as true living organisms by biologists.
Why is it easier to develop drugs to kill bacteria than viruses or protozoa?Why are some antibacterial drugs only used on the skin?
Parasitic life cycles in relation to human infection.Using the life cycle, environmental factors and risk factors, what interventions
Parasitic flagellates may occur in water and damp soil. Provide advice to someone traveling in a third world country
How should stool culture for routine bacterial pathogens be processed? Be sure to include appropriate media and atmosphere of incubation.
What are the types of organisms that can cause parasitic diseases in the human being? Explain at least four such organisms.
Describe the mechanism which lead to the functional diversity of antigen processing and presentation. What is the benefit to the host?
What is the main difference between enveloped and nonenveloped viruses? How does this affect entry of each type of virus into the host cells?
How do you prepare lysates that give high titers for virulent phage?
Density Distribution of Viral DNA.Explain how the three density peaks in Figure 9-20 are related to replication of the injected DNA
Which of the following STD has the highest prevalence based on the CDC findings?
The Nature of Viruses - Are Viruses Alive?Are Viruses alive - is this a true statement? The internal structure of many protists is much more complex
Argue for or against the statement, "Viruses are alive." As before this is not an opinion question.
Why does IgM increase by four fold with west nile virus between acute and four weeks later? Please explain the pathophysiology ie. complement system.
Describe general characteristics of picornaviruses.Define plaque, lawn of bacteria.
Describe how the mammalian immune system responds to (i) a laceration, such as an injury from falling on a barbed-wire fence, and (ii) a viral infection.
Name the five classes of immunoglobulins and their functions.Outline the types of immunity? Which type of immunity produces lifelong immunity?
Ebola virus - Structure and cell interaction.What is the interaction that goes on between the Ebola virus and the cells in a human?
Lack of Success in Developing an AIDS Vaccine.Why have vaccines been relatively unsuccessful in stopping AIDS?
Correlation between the speed of a viral infection.Is there a correlation between the speed of a viral infection and its potential mortality? Explain.
What are the characteristics of a long term non-progressive (LNTP)?Antibodies are produced by ___ cells of the immune system.
How a potential HIV vaccine could be made.Design an experiment using the vaccinia virus
Immune detection of a pathogen.Please help with the following problem. Provide a short explanation, in at least 100 words.