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- • Most sexually transmitted diseases (STDs) are
asymptomatic. Persons with asymptomatic STDs are at risk for complications
and transmission of infection to others.
- • In some cases, screening is the only means to
detect and treat infection to prevent adverse outcomes.
- • The judicious use of screening tests relies on
appreciation of disease epidemiology and accurate assessment of
a patient’s sexual risk behavior.
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Most sexually transmitted diseases are asymptomatic.
Patients often acquire infection from sex partners who exhibit no
symptoms. Persons with asymptomatic infection may develop complications
or sequelae without knowledge of being infected. The epidemiology
of STDs—how those diseases are distributed within a population—is
not random; risk factors that include age, gender, and sexual activity
dictate who is likely to be infected. Screening and timely treatment
have been shown to reduce the consequences of infection. National
organizations, including the US Preventive Services Task Force and
the Centers for Disease Control and Prevention (CDC), as well as professional
medical societies, regularly review the current scientific literature
and make evidence-based recommendations for STD and HIV screening.
Individuals are advised to undergo STD testing not only to identify
and treat asymptomatic infection (screening) but to monitor trends
in the population (surveillance) and confirm a diagnosis. Table
1–1 summarizes current STD and HIV screening recommendations.
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