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Questions and Answers
What is unique about the Pox virus's replication process?
What is unique about the Pox virus's replication process?
- It needs to enter the host cell's nucleus
- It brings its own RNA polymerase to produce proteins (correct)
- It requires the host cell's DNA polymerase
- It replicates in the nucleus
What is the characteristic shape of the Pox virus's core?
What is the characteristic shape of the Pox virus's core?
- Cylindrical
- Spherical
- Dumbbell-shaped (correct)
- Oval
What is the largest known DNA virus?
What is the largest known DNA virus?
- Smallpox virus
- Molluscum contagiosum virus
- Cowpox virus
- Pox virus (correct)
What is the characteristic feature of the lesions caused by Smallpox virus?
What is the characteristic feature of the lesions caused by Smallpox virus?
What is the mode of transmission of Molluscum contagiosum virus in adults?
What is the mode of transmission of Molluscum contagiosum virus in adults?
What is the cause of Cowpox?
What is the cause of Cowpox?
What is the characteristic feature of the lesions caused by Molluscum contagiosum virus?
What is the characteristic feature of the lesions caused by Molluscum contagiosum virus?
What is the function of the Pox virus's RNA polymerase?
What is the function of the Pox virus's RNA polymerase?
What is the characteristic of the Guarneri inclusion bodies?
What is the characteristic of the Guarneri inclusion bodies?
What is the result of a biopsy in cases of Pox virus infection?
What is the result of a biopsy in cases of Pox virus infection?
What is the characteristic feature of Smallpox virus?
What is the characteristic feature of Smallpox virus?
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Study Notes
Pox Virus Characteristics
- Pox virus is a type of DNA virus that replicates exclusively in the cytoplasm.
- It brings its own RNA polymerase to produce all the proteins it needs, including DNA polymerase.
- Forms intracytoplasmic bodies in cells it infects, with type B being the most important.
- Finding these bodies on a biopsy is diagnostic.
Small Pox Virus (Variola)
- Causes raised skin lesions on surfaces, with all lesions being the same age.
- Lesions are more common on the extremities and face than the trunk.
Cow Pox Virus
- Causes symptoms similar to small pox.
Molluscum Contagiosum Virus
- Causes flesh-colored, dome-shaped, umbilicated lesions on the trunk.
- Spread through sexual contact in adults, usually resulting in a single lesion.
- Can spread diffusely in immunosuppressed individuals.
- Replicates in the dermis.
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