EEF1A1 and Decreased total leukocyte count: Isolates of K. pneumoniae from patients with leukopenia express higher levels of EF-Tu compared with K. pneumoniae isolates from patients with leucocytosis (Liu et al., 2014) suggesting that EF-Tu may be a pathogenicity factor in K. pneumonia-based leukopenia (Liu et al., 2014).