Fig. 2
From: Why might regional vaccinology networks fail? The case of the Dutch-Nordic Consortium
The DNC tetra-valent pneumococcal conjugate vaccine made in 1998. The left and middle single-dose glass vials contain respectively a low-dose (LD) and a high-dose (3xLD) freeze-dried formulation with the four serotypes 6B, 14, 19Â F and 23Â F all conjugated individually to tetanus toxoid. The vial on the right contains the reconstitution fluid in which the vaccine dose is dissolved just prior to the vaccination