Number of cases hospitalized in SINAN, SIH-SUS and the sensitivity of the dengue surveillance system in detecting hospitalized cases I n ten municipalities in Brazil, 2008–2013.

<p>Number of cases hospitalized in SINAN, SIH-SUS and the sensitivity of the dengue surveillance system in detecting hospitalized cases I n ten municipalities in Brazil, 2008–2013.</p

Pairs identified by the probabilistic record linkage according to the initial clinical assessment in SIH-SUS and final case classification in SINAN in the 10 municipalities of the study, Brazil, 2008–2013.

<p>Pairs identified by the probabilistic record linkage according to the initial clinical assessment in SIH-SUS and final case classification in SINAN in the 10 municipalities of the study, Brazil, 2008–2013.</p

Hospitalizations recorded in the SINAN and SIH-SUS information systems by sex age and classification, in ten municipalities in Brazil, 2008–2013.

<p>Hospitalizations recorded in the SINAN and SIH-SUS information systems by sex age and classification, in ten municipalities in Brazil, 2008–2013.</p

Sensitivity of the dengue surveillance system in detecting hospitalized dengue cases in ten municipalities in Brazil, 2008–2013.

<p>Sensitivity of the dengue surveillance system in detecting hospitalized dengue cases in ten municipalities in Brazil, 2008–2013.</p

Probabilistic record linkage of hospitalized dengue cases in the Hospitalization Information System (SIH-SUS) and the reported dengue cases from the Notifiable Diseases Information System (SINAN) and in ten municipalities of the study, Brazil, 2008–2013.

<p>Probabilistic record linkage of hospitalized dengue cases in the Hospitalization Information System (SIH-SUS) and the reported dengue cases from the Notifiable Diseases Information System (SINAN) and in ten municipalities of the study, Brazil, 2008–2013.</p

Mechanical control activities conducted in Boa Vista based on <i>Ae. aegypti</i> source reduction.

<p>A first survey consisted of inspecting 100% of the houses in 22 districts that belonged to Zones 1 and 2. Fifteen days later, a new larval survey was conducted in 15 of these districts, sampling around 10% of houses per district.</p

Resistance status to the organophosphate temephos of Boa Vista <i>Ae. aegypti</i> larvae collected as eggs at Zones 1 and 3.

<p>(*) Lethal concentration.</p><p>(**) Resistance ratio.</p><p>Samples were collected two weeks before, during or after (three or six months) the intensification of control efforts, performed through both mechanical and chemical actions.</p

Timeline of vector control activities related to DENV-4 confirmation in Boa Vista, Roraima State.

<p>Intensification of vector source reduction activities started at the 32^nd epidemiological week ('<i>during</i>').</p

Resistance status to the pyrethroid deltamethrin of Boa Vista <i>Ae. aegypti</i> adults collected as eggs at Zones 1 and 3.

<p>(*) Lethal concentration.</p><p>(**) Resistance ratio.</p><p>Samples were collected two weeks before, during or after (three or six months) the intensification of control efforts, performed with both mechanical and chemical actions.</p

Median, 25 and 75 percentiles for the quantitative series of eggs collected in ovitraps in (A) Zone 1, (B) Zone 2 and (C) Zone 3.

<p>The dashed line refers to the intervention, and the number of eggs per ovitrap per week was assessed before (five weeks prior) and after (five weeks later) the intensification of control activities.</p