In 2004, a study investigated the frequency of syphilis in a remote Australian community a total of 132 people participated in the study. A serological tests to diagnose cases of early syphilis were...

In 2004, a study investigated the frequency of syphilis in a remote Australian community a total of 132 people participated in the study. A serological tests to diagnose cases of early syphilis were conducted for each participant during 2004. Two cases were identified. The researchers followed those at risk for another year, and during this time frame another person was diagnosed.

(a) What was the prevalence of syphilis in 2004?

 (b) What was the prevalence of syphilis among study participants at the end of 2005 Assume no loss to follow-up?

(c) What was

the cumulative incidence

of Syphilis over the study period?