ch 27 part 9 reviews Flashcards
disease 9
Human Papillomavirus STIs
human papil o ma virus
characterized by :
warts on
external & internal genitalia
Causative Agent :
human papillomavirus (HPV)
enters epithelium through __________
microscopic abrasions
associated with :
cervical cancer
سرطان عنق الرحم
pathogenosis of HPV
enters epithelim via microscopic abrasion
infects deep layer of epithelium
establishes latency
epidemology
transmisson :
readily spread by sexual intercourse & oral sex
b. asymptomatic person can transfer the virus
c. history of multiple partners most important risk factor
be transferred to newborns at birth & develop warts
be transferred to newborns at birth & develop warts that leads to :
block respiratory tract
prevention :
abstinence
b. condoms do not always give full protection
monogamy
d. vaccine to protect against HPV types
condoms do not always give full protection in HPV why :
virus can be transmitted by exposure to areas not covered by condom
vaccine to protect against HPV types responsible for __________% HPV-associated cancers ________genital warts
~70% &~90%
treatment :
laser treatment
b. freezing with liquid nitrogen
c. surgical excision
d. acid treatment
e. external: creams & ointments
f. does not cure infection so can recur
g. regress over time