Table 2 Follow-up testing and specimen collection for all participants in the PICASSO 2 study by time of visit, Lima, Peru, 2018–2022

RapidTreponema pallidumantibody test

x

Rapid plasma reagin^a

x

x

x

x

x

x

Treponema pallidum-particle agglutination test^b

x

x

x

x

x

x

Whole blood and serum collection

x

x

x

x

x

x

Rapid HIV test

x

x (if previously HIV uninfected)

x (if previously HIV uninfected)

x (if previously HIV uninfected)

x (if previously HIV uninfected)

x (if previously HIV uninfected)

Absolute CD4 count (if HIV infected)

x

x

x

x

x

x

Plasma viral load (if HIV infected)

x

x

x

x

x

x

Lesion swab

x

Oropharyngeal swab

x