Prevalence of syphilis infection in different tiers of female sex workers in China: implications for surveillance and interventions

Prev of #Syphilis in Diff Tiers of ♀ Sex Workers in China http://t.co/2zJpD613 Low-tier FSWs 9.7%; middle 4.3%; high-tier FSWs 2.2%

Prev of #Syphilis in Diff Tiers of ♀ Sex Workers in China http://t.co/crQvSjYO Low-tier FSWs 9.7%; middle 4.3%; high-tier FSWs 2.2%

Prev of #Syphilis in Diff Tiers of ♀ Sex Workers in China http://t.co/KyDlAm76 Low-tier FSWs 9.7%; middle 4.3%; high-tier FSWs 2.2%

Prev of #Syphilis in Diff Tiers of ♀ Sex Workers in China http://t.co/T3LUoET1 Low-tier FSWs 9.7%; middle 4.3%; high-tier FSWs 2.2%

Prev of #Syphilis in Diff Tiers of ♀ Sex Workers in China http://t.co/yGZ7NQ5G Low-tier FSWs 9.7%; middle 4.3%; high-tier FSWs 2.2%

Prev of #Syphilis in Diff Tiers of ♀ Sex Workers in China http://t.co/fHqSF2YK Low-tier FSWs 9.7%; middle 4.3%; high-tier FSWs 2.2%

Prev of #Syphilis in Diff Tiers of ♀ Sex Workers in China http://t.co/j4m3NHWP Low-tier FSWs 9.7%; middle 4.3%; high-tier FSWs 2.2%

Prev of #Syphilis in Diff Tiers of ♀ Sex Workers in China http://t.co/ubKc2ZsG Low-tier FSWs 9.7%; middle 4.3%; high-tier FSWs 2.2%

Prev of #Syphilis in Diff Tiers of ♀ Sex Workers in China http://t.co/WqJbDYNG Low-tier FSWs 9.7%; middle 4.3%; high-tier FSWs 2.2%

Prevalence of syphilis infection in different tiers of female sex workers in China… http://t.co/tIY5ZJmh