please wash and disinfect hands for 15 seconds

absenteeism attention bacteria biology blue chemistry clean cleaning cleanliness cold colds cook cough devices disinfect disinfectants disinfection droplet elevated epidemic equipment fever feverish fifteen flu fours hand hands hygiene hygienic illness infection laundry leave medicine nose occupational out paramedic patient person preparation protectant protection protective quarter regulation risk safety season seconds sick skin sniff soap surgery tap the virus viruses warning wash washing watch water