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Dental Terminology word elements - 1

Test paper for dental students - Virology test (2005) Part 1

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Hematocrap pathology
Dental terminology
Dental terminology
Anatomy
Dental terms
Virology
Neuro
Neck Anatomy
Nitrous Oxide
Dental terminology 2
Dental terminology 3
Dental terminology 4
Dental terminology 5
Dental terminology 6
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Question Answer
Ribavarin + Interferon alpha 2a, Adefovir, and lamivudine are antivirals used to treat what virus?
What interferon is licensed for tx of chronic hep b and c infections?
T or F: Interferons are viral specific
What definition? Host encoded proteins produced in response to viruses, synthetic nucleotides, and foreign cells
T or F: Hepatitis B encodes a reverse transcriptase.
What is responsible for effecting resolution of HBV infection by elimination infected hepatocyte?
What is responsible for causing the symptoms in HBV infections?
____ of patients w/ chronic HBV infection have continued liver destruction, cirrhosis, liver failure or primary hepatocellular carcinoma; _____ of patients have chronic passsive hepatitis and don't have as many problems.
(Acute/Chronic) infection of HBV occurs in about 5-10% of the population.
Fulminant hepatitis occurs in ___% of patients and may be ______.
T or F: HBV is characterized by a short incubation period.
Symptoms of HBV infection appear in about _____% of the patients
T or F: HBV can be asymptomatic (chronic)
Where does HBV virus replicate?
What is the major source of the infectious virus HBV?
A chronic infection (of HBV) can be distinguished by the continued finding of __________, ___________, or both and a lack of detectable ___________ to these antigens.
(HBsAG/HBeAg) is the best correlate to the presence of infectious virus (HBV).
Detection of both HBsAg and HBeAg in the blood indicates _____________.
What is HbcAG?
What common antigen to the particles produced by HBV-infected cells have on the envelope?
How many particles does an HBV-infected cell produce?
Which particles produced by HBV-infected cells are the infectious particles?
What are the largest particles produced by the infected cells (from HBV)?
What is the virion of HBV called? (national board question)
What virus? Genome in a relaxed circular partially duplexed DNA (3.2 kb), replicates in the nucleus, has an RNA intermediate, enveloped, tissue tropism in the liver. )
Why was there a sudden peak in influenza resistance to rimantadine and amantadine in 2003 (mainly in China)?
What does neuraminidase (NA) on influenza do?
What do the new drugs Zanamivir and Oseltavivir (tamiflu) do?
How does influenza develop resistance to antivirals?
How do antivirals work to inhibit flu infection?
What antivirals are used for influenza?
T or F: Bird virus and Human virus can mix genes (undergo reassortment)
Why is the flu vaccine an educated guess?
T or F: Flu vaccine is perfect every time
What is the definition of epidemic? Pandemic?
Reassortment is a _______ shift, while mutational drift is a _________ shift. (occurs in influenza)
T or F: enzymes (HA and NA) in flu virus can undergo mutation.
T or F: antivirals are effective against influenza even after the RNA has been released into the cell.
What are the steps (4) of infection and replication for influenza?
What is the part of the flu virus that makes it very distinct from other viruses?
T or F: bacterial pneumonia can develop secondary to the flu
What causes the systemic symptoms of the flu?
Flu symptoms usually resolve within ___ to ____ days.
What is the incubation period for flu virus?
where does flu infection begin?
How is influenza transmitted?
In an average year about ____ to _____% of the population get the flu
What is the target for influenza antivirals?
Which glycoproteins are present on the surface of Influenza virus?
What virus? Segmented negative strand RNA, Helical Symmetry, Enveloped
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