CRP and infectious disease: Our literature search in PubMed using “tocilizumab” with special attention to cases of infectious diseases during TCZ therapy and reported CRP levels at the time of diagnosis yielded a total of 28 case reports on this specific issue (Table 2) [19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43].