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Hepatitis C is a chronic liver infection that can be either silent (with no noticeable symptoms) or debilitating. Either way, 80% of infected persons experience continuing liver destruction. Chronic hepatitis C infection is the leading cause of liver transplants in the United States. The virus that causes it is blood borne, and therefore patients who undergo frequent procedures involving transfer of blood are particularly susceptible to infection. Kidney dialysis patients belong to this group. In 2008, a for-profit hemodialysis facility in New York was shut down after nine of its patients were confirmed as having become infected with hepatitis C while undergoing hemodialysis treatments there between 2001 and 2008.
When the investigation was conducted in 2008, investigators found that 20 of the facility's 162 patients had been documented with hepatitis C infection at the time they began their association with the clinic. All the current patients were then offered hepatitis C testing, to determine how many had acquired hepatitis C during the time they were receiving treatment at the clinic. They were considered positive if enzyme-linked immunosorbent assay (ELISA) tests showed the presence of antibodies to the hepatitis C virus. - Health officials did not test the workers at the hemodialysis facility for hepatitis C because they did not view them as likely sources of the nine new infections. Why not?
-Why do you think patients were tested for antibody to the virus instead of for the presence of the virus itself?
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In terms of population dynamics, what is "boom-and-bust"cycling?
The majority of FDA approved drugs can be profitably classified into three primary groups- Identify the three companies with in silico platform technologies that are also correctly matched with drug modality.
An ecologist recorded 12 white-tailed deer, Odocoileus Virginianus, per square mile in one woodlot and 20 per square mile on another woodlot. What was the ecologist comparing? a. density b. dispersion c. carrying capacity d. quadrats e. range
In addition, you have been asked to include information regarding the basic exposure mechanisms for biological agents, methods of evaluation and control for biological agents, and methods of sampling for biological agents.
Estimate how would you explain the change in variation of the virus population after 1000 generations? There is more variation after 1000 generations.
What are the different vitamins that keep the human brain in healthy condition?
Question #1 You have a set of genes, A, B, C, D and E. 3-factor crosses give the following results:
Draw the pathway of blood flow through the circulatory system of a mammal. Label in your pathway: lungs, tissues, left and right ventricles
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Draw a chloroplast and label the following structures, outer membrane, inner membrane, stroma, thylakoid, thylakoid membrane and granum.
e.m.s. went to bed about 11 pm after a busy evening of entertaining friends and family. he was awakened at 2 am with
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