Biohazards are everywhere, in every handshake, sneeze and door handle. What matters isn’t where they are, but how you protect yourself against them. For the average person, regular hand-washing and up-to-date vaccinations are ample protection. But, much like people working in hospitals and medical labs, those who work in and around sewers are at an increased risk of infection and disease from biohazard exposure. And, much like doctors and nurses take extra care to limit that exposure, so should wastewater workers take similar precautions.