by Elio — In­tra­cel­lu­lar life has its perks. In­side host cells, bac­te­ria are pro­tected from neu­trophils, com­ple­ment, an­ti­bod­ies, some an­tibi­otics, and the other un­pleas­ant things float­ing around in tis­sue flu­ids. In ad­di­tion, here they have ac­cess to am­ple food. But there is a catch, namely how to in­fect other cells and other hosts…