Coughs and sneezes, viruses and bacteria of all kinds surround your patients and your staff.咳嗽和打喷嚏时,各种病毒和细菌,环绕你的病人和你的员工。 If either one is sick, they're likely to infect the other.如果任何一个生病,他们有可能感染其他。 Moreover, the bacteria and viruses they are carrying linger long after people have left the building.此外,他们携带的细菌和病毒流连忘返后不久的人离开大楼。