Fig. (3) Mean virus titer increase in handpicked human primary (A) exocrine cell clusters inoculated with Adr and V89-4557 respectively and corresponding individual donor titers over time for (B) Adr and (C) V89-4557. Mean virus titer increase in handpicked human primary (D) endocrine cell clusters and corresponding individual donor titers over time for (E) Adr and (F) V89-4557. Virus titers are expressed as – logTCID50/200 µL and bars represent mean +SEM.