A previous study demonstrated that needle bloodletting at LU 11 improved the symptoms of pneumonia.[51] Another study demonstrated that acupuncture at LU 11 blocked the infiltration of CD4+ T cells and inflammatory cells to regulate inflammation.[52] In addition, several studies have confirmed the local antinociceptive effect of acupuncture, thereby supporting local acupuncture in the throat.[53]. This evidence concerns the gene CD4 and susceptibility to pneumonia measurement.