Map of the endemic area and locations of the entomological and serological surveys carried out between 1995 and 2008.

<p>1- Playa de Oro, 2 - Angostura, 3 -Guayabal, 4 -Agua Salada, 5 -Pichiyacu, 6 - Playa Grande, 7- Herradura, 8 -San Miguel, 9- El Tigre, 10-Agua Blanca, 11- Callemansa, 12 - Corriente Grande, 13 – Colón de Onzole, 14 - Calpulí, 15 - Las Pavas, 16- Naranjal.</p

Entomological assessment 1995, 2000, 2004 and 2008, in the major collection sites located in three major river systems in the onchocerciasis endemic zone of Ecuador.

<p>No. =  Number of black flies analyzed; IR =  infectivity rate in fly heads (per 2000); CI =  Confidence Interval; ND =  Not done;</p><p>* =  treatment was stopped in this particular river system prior to this date.</p

The prevalence of anti-<i>Onchocerca volvulus</i> antibodies (Ov-16 antigen) in 1–15 year old children resident in the community collection sites in the onchocerciasis endemic area of Ecuador.

<p>Samples taken in 2001 and 2008.</p><p>Rounds  =  The number of rounds of treatment received; Total number present  =  Total number of children within the tested age range present in the community; NA =  not available</p

Drug distribution coverage for the Onchocerciasis Program.

<p>Percentage (%) of eligible people treated every 6 months from 1991–2009. Line indicates a 85% coverage level.</p

The prevalence of anti-<i>Onchocerca volvulus</i> antibodies (Ov-16 antigen) in 1-16 year old children resident in various communities within the onchocerciasis endemic area of Ecuador.

<p>Samples taken in 2006 and 2007.</p><p>Rounds  =  The number of rounds of treatment received; Total number present  =  Total number of children within the tested age range present in the community; NA =  not available.</p