Figure 5.

Effect of arboviral infections on diaphragmatic EMGs of mice challenged with hypercapnia. C57BL/6 mice were infected with sham, WNV, or WEEV. Plethysmography was performed daily to detect the virally infected mice having MV values below 2SD of the normal MV values. The diaphragmatic EMGs of these mice with respiratory insufficiencies were then measured in mice before (top EMG readings) and after intubation and vagotomy (middle EMG readings). The mice were challenged with 7% CO₂ and the diaphragm EMGs were measured (bottom EMG readings). The animal numbers, MV values, and RMS values reflecting the amplitudes are all listed above the EMG readings. (Adapted from Figure 3 in open-access publication (Wang et al., 2013b))