POXVIRUSES
1.
Virology
a.
They are double-strand DNA viruses.
b.
They are large particles with two morphological types:
i.
large, brick-shaped (vaccinia, molluscum contagiosum)
ii.
large, oval with criss-cross surface bonding (orf, paravaccinia).
2.
List of Poxviruses
|
Poxvirus |
Natural
host |
Disease |
|
Smallpox |
Humans |
Febrile
disease with widespread vesicular lesions. |
|
Molluscum
contagiosum |
Humans |
Low-grade
infection characterized by reddish, waxy papules on skin. |
|
Orf |
Sheep,
goats |
Chronic
granulomatous lesions |
|
Monkeypox |
Monkeys,
squirrels |
Mild
smallpox |
|
Tanapox |
Monkeys |
Scanty
vesicular lesions on skin which do not progress to pustules. |