DNA viruses 1 Flashcards
(28 cards)
which DNA virus uses direct penetration?
poliovirus
which DNA virus uses membrane fusion?
measles virus
which DNA virus uses endocytosis?
adenovirus, and herpesvirus
what are prophages?
inactive phages
what is induction?
when the prophage is exicised from the chromosome by recombination and it reenters the lytic cycle
where does pox virus replicate?
in the cytoplasm
how does hep B virus replicate?
it replicates DNA from an RNA intermediary by viral reverse transcriptase
which DNA virus is ss?
parvovirus
parvovirus causes?
erythema infection
name a DNA virus that is both ss and ds
hepadnavirus
list the dsDNA virus
poxviridae, herpesviridae, papillomaviridae, polyomaviridae, adenoviridae
what is the second largest DNA virus?
poxvirus
how is poxviridae transmitted?
via inhalation of virus, in close contact.
poxviridae causes?
smallpox, molluscum contagiosum
list the stages of pox infection
- macule (flat)
- papule (raised)
- vesicle
- pustule
- crust
- scar
variola infects
internal organs. It moves via the blood to the skin
what is molluscipoxvirus?
it is a skin disease characterized by smooth waxy papules
how is molluscum contagiosum transmitted?
by contact of infected individuals
treatment of molluscum contagiosum?
removal of infected nodules
HHV 1 and HHV2 cause
slow spreading skin lesions. AKA herpes simplex virus.
HHV-1 can cause
oral herpes (cold sores), ocular herpes, whitlow
HHV-2 can cause
genital herpes, whitlow, neonatal herpes (fatal)
histological distinction of herpes 1 2 is
syncytia
HHV3 causes?
varicella, and shingles
