11 Questions
What is unique about the Pox virus's replication process?
It brings its own RNA polymerase to produce proteins
What is the characteristic shape of the Pox virus's core?
Dumbbell-shaped
What is the largest known DNA virus?
Pox virus
What is the characteristic feature of the lesions caused by Smallpox virus?
Flesh-colored, dome-shaped, and umbilicated
What is the mode of transmission of Molluscum contagiosum virus in adults?
Through sexual transmission
What is the cause of Cowpox?
Cowpox virus
What is the characteristic feature of the lesions caused by Molluscum contagiosum virus?
Small, painless, and flesh-colored
What is the function of the Pox virus's RNA polymerase?
To produce all the proteins the virus needs
What is the characteristic of the Guarneri inclusion bodies?
They are where the virus replicates
What is the result of a biopsy in cases of Pox virus infection?
It is diagnostic
What is the characteristic feature of Smallpox virus?
It causes lesions that are all the same age
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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