Upon request of the authors, corrections were made in the article "Seroprevalence of antibodies to poliovirus in individuals living in Portugal, 2002", published in the June 2007 issue of Eurosurveillance monthly (available at:
http://www.eurosurveillance.org/em/v12n06/1206-224.asp).
The Figure was replaced with a new, corrected one. In addition, in Table 2 first column bottom row, the line 'difference to 384' was corrected to 'difference to 138'. These corrections were made on 12 September 2007.