Table 7 Summary of anatomical site and sub-site infections before and after the trial

Case 1

Before: Larynx (aryepiglottis fold/false and true vocal cords/arytenoids/anterior and posterior commissures/sub-glottis) and trachea/lungs

After: Larynx (aryepiglottis folds/false and true vocal cords/anterior and posterior commisure/sub-glottis) and trachea/bronchi/lungs

Case 2

Before: Larynx (aryepiglottis folds/false and true vocal cords/arytenoid/anterior commissure/sub-glottis)

After: Larynx (aryepiglottis fold/false vocal cords/true vocal cord)

Case 3

Before: Larynx (true vocal cords/anterior and posterior commissures)

After: Larynx (true vocal cord/anterior commissure)

Case 4

Before: Larynx (false and true vocal cords/arytenoid), palate and pharynx

After: Larynx (true vocal cords)

Case 5

Before: Larynx (true vocal cords/anterior commissure)

After: Larynx (false vocal cords/true vocal cord)

Case 6

Before: Larynx (aryepiglottis fold/arytenoid/posterior commissure) and pharynx

After: Larynx (laryngeal epiglottis surface/aryepiglottis folds/false and true vocal cords/arytenoids/anterior and posterior commissures)

Case 7

Before: Larynx (false vocal cord/true vocal cord/anterior and posterior commissures)

After: Clear

Case 8

Before: Larynx (laryngeal epiglottis surface/aryepiglottis fold/arytenoid/anterior commissure)

After: Larynx (anterior and posterior commissures)