LUC count was found to be a useful diagnostic parameter in the case of clinical suspicion of acute leukemias (Rabizadeh et al. 2015), HIV infection (Vanker and Ipp 2014) and Aspergillosis (Cakir et al. 2018), in predicting hematological response to recombinant human granulocyte colony-stimulating factor (rHu-G-CSF) (Bononi et al. 2009) or successful collection of stem cells in case of progenitor cells mobilization to peripheral blood before autologous stem cell transplantation (Merter et al. 2022). Here, CSF3 is linked to HIV infectious disease.