Additionally, there were statistically significant differences in several laboratory indicators, including aspartate aminotransferase (AST), alkaline phosphatase (ALP), lactate dehydrogenase (LDH), C-reactive protein (CRP), CRP-to-albumin ratio (CAR), procalcitonin (PCT), activated partial thromboplastin time (APTT) and thrombin time (TT), with higher levels in the co-infection group (Table 2). This evidence concerns the gene CRP and coinfection.