Concurrency Slides

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Who has HIV? (Zambia)
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Lifetime partners and HIV prevalence (From
Martina Morris U of Washington)
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Frequency of concurrent and suspected concurrent
relationships.Redrawn from Carael M. Sexual
Behavior Chapter 4 in Cleland and Ferry Sexual
Behavior and AIDS in the Developing World 1995
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Concurrency vs Serial Monogamy
By Stewart Parkinson Population Services
International
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Concurrency
December
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Concurrency
January
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Concurrency
February
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Concurrency
March
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Concurrency
April
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Concurrency
May
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Concurrency
June
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Concurrency
July
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Concurrency
August
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Serial Monogamy
December
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Serial Monogamy
January
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Serial Monogamy
February
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Serial Monogamy
March
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Serial Monogamy
April
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Serial Monogamy
May
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Serial Monogamy
June
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Serial Monogamy
July
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Serial Monogamy
August
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Concurrency
December
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From Warren Winkelstein Jr et al, The San
Francisco Mens Health Study Continued Decline
in HIV Seroconversion Rates among
Homosexual/Bisexual Men. AJPH November 1988 vol
78, pp. 1472-4
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BEHAVIOR CHANGE AMONG MALES IN MANICALAND,
ZIMBABWE
Source Gregson et al, 2006
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2 partners in past 12 months age 15-24, Malawi
DHS 1996, 2000, 2004
Males
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Tanzania Multiple partners in past year.
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Two or more partners in past yearCote DIvoire
(MEN)
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Two or more partners in past yearCote DIvoire
(WOMEN)
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Rwanda Multiple partners in past year.
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