Map of the Brazilian coastal regions, showing the HAstV genotype distributions during 2005–2011.

<p>Map of the Brazilian coastal regions, showing the HAstV genotype distributions during 2005–2011.</p

Seasonality of HAstV in cases of acute diarrhea.

<p><b>Laboratory-based HAstV in three Brazilian regions, between 2005 and 2011.</b> The rate of HAstV detection by month and number of HAstV-positive samples. Each month represents cumulative observations.</p

Phylogenetic analyses based on the nucleotide sequences (ORF2 region) of classic HAstV.

<p>(A) Phylogenetic analyzes were based on the 320-bp capsid gene between HAstV-1 strains detected in this study and HAstV-1 worldwide strains. (B) Phylogenetic analyzes between strains HAstV-2-HAstV-8 detected in this study and HAstV worldwide strains. The Brazilian strains described in this study are denoted by black circles. The scale bar indicates nucleotide substitutions per site. Bootstrap values (2.000 pseudo-replicates) above 70 are shown. The HAstV reference strains included in this analysis were obtained from GenBank.</p

Clinical manifestations of HAstV cases according to age group.

<p>Clinical manifestations of HAstV cases according to age group.</p

Prevalence of HAstV in three Brazilian coastal regions from 2005 to 2011.

<p>Prevalence of HAstV in three Brazilian coastal regions from 2005 to 2011.</p