Gargling and Hand Washing Are the Basis of Disease Prevention (S01E23)

S01E01 First Begin with a Hero S01E02 If You Possess an Aptitude, We'll Make Use of It S01E04 The Forefinger Twitches S01E05 Well Fed, Well Regarded S01E06 The Wise Man Never Forsaketh an Advantage S01E07 Thus Saith the Elder S01E08 The Forest in Labour S01E09 Contrary to Wishes S01E10 No Place of Joy Hath a Soldier S01E11 Sacrifice the Plum Tree to Preserve the Peach Tree S01E12 When You Surround an Army, Leave an Outlet Free S01E13 To Fight and Conquer in All Our Battles Is Not Supreme Excellence S01E14 Amidonia in a Lion's Skin S01E15 Becoming Good Friends Who Never Offend S01E16 Tyranny Is More Terrible than Tigers S01E17 A Warrior Will Die for One Who Understands Him S01E18 Seeing Snake Shadows in Every Cup S01E19 Strike While the Iron Is Hot S01E21 Using Shrimp as Bait to Catch Sea Bream, but Instead Catching a Shark S01E22 Those Without Wisdom Are Fools S01E23 Gargling and Hand Washing Are the Basis of Disease Prevention S01E24 Away from My Hometown for So Many Years S01E25 Know Your Enemy and Know Yourself, and Your Union Shall Not Be Endangered S01E26 Ahead, I See No Ancestors; Behind, I Find No Followers