The human immunodeficiency virus (HIV) hitches a ride inside dendritic cells to travel to lymph nodes, where it infects and wipes out helper T cells, causing AIDS.

• 人类免疫不全病毒（HIV）会进入树突细胞，一路搭便车到淋巴结，感染辅助者T细胞并将之消灭，导致爱滋病。