Entomological parameters in the focus of Southern Chiapas, México.

The seasonal S. ochraceum s.l. biting rate is the number of bites per person per season. Prevalence of infective flies is expressed as rate per 2,000 flies examined and seasonal transmission potential is the third-stage larvae per person per season. These entomological parameters were estimated during 2008 through 2011 in the sentinel, extra-sentinel and other communities in the focus of Southern Chiapas.*Value represents point estimate and value in parentheses represents 95%-confidence intervals, CIs (95% upper limit CI when zero) surrounding point estimate.