Fig. 3.

Typing results of 168 challenge strains with PCV13 and PSV23 classification sets; pattern codes: according to serotypes of challenge strains: solid: serotypes of challenge strains are part of the respective classification set; checkerboard: serotypes of challenge strains are not part of the respective classification set; colour codes: according to level of typing agreement between the Quellung reaction and FT-IRS: green: typing result concordant to serotype level between methods; yellow: result concordant to serogroup level; red: discordant results