Figure 2

Study design, enrolment and follow-up of study participants, Boromo Health District, Burkina Faso (2004–2006). * 18 near term in March-April 2004. †3 not pregnant, 1 delivered before enrollment, 55 near term in March-April 2004. ‡ 2 not pregnant, 29 near term in March-April 2004. §delivered before 1st Sept 2004.