218-part 2 Flashcards

1
Q

rate of spread of STI can be mathematically calculated by

A

efficiency of transmission x rate of partner exchange x duration of infectiousness

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2
Q

how many new std cases each year and how much does it cost

A

19 million cases, $17 billion

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3
Q

Three things to consider for biology of sexual transmission

A

status of the mucosal surface, the viral inoculum, and target cells

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4
Q

Important biological factors of transmission for infected donor

A

pathogen load (stage of illness), presence of another STD, viral phenotype

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5
Q

important biological factors of transmission for the uninfected recipient

A

presence of an STD, genetic susceptibility, integrity of epithelium, target cells, mucosal immune response

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6
Q

why are men more likely to give HIV

A

higher concentration of HIV in semen than vaginal secretions

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7
Q

why does having another STD increase your risk for HIV

A

it increases the number of target cells (langerhans dndritic macrophages) in the genital region

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8
Q

three main consequences of PID

A

infertility (20%), chronic pain (18%), ectopic pregnancy (9%)

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9
Q

three std’s that can give you cancer

A

hpv, hep b, HIV

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10
Q

when is transplacental transmission of STDs most common

A

when STD is acquired later in pregnancy

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11
Q

Can stds be transmitted in breast feeding

A

yes

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