Hand sanitizer must be used every half inning. Coaches wear masks. No one may share water bottles. During every pitcher-catcher conference, the pitcher must cover his mouth with his glove. Uniforms must be washed after every game. Fist and elbow bumps as well as high-fives are prohibited. Players do the best they can to spread out in the dugout. Fans sparsely litter the bleachers.
Source: The Baltimore Sun High School Sports