There is now no vaccine available to protect people against legionnaires’ disease. Instead, lowering the likelihood of legionella development and dissemination is the most important step in avoiding legionnaires’ illness. Maintenance of the building’s water systems and the installation of legionella control measures are two ways in which building owners and managers might accomplish this goal. Assessments of the danger of legionella are only one of the various methods in which you might do this. When looking at the amount of businesses that now provide this as a service, it is clear that legionella water management systems have become an industry standard. The temperature of the water is regulated as the major strategy for mitigating the danger posed by legionella. What is so strange about the sickness is the degree to which it may be so unexpected, as well as the manner in which it has also come about over the course of the last year. Following the lockdown, there has been an increase in the likelihood of legionella outbreaks, and there has also been a rise in commercial property. The presence of covid-19 has unquestionably made it more challenging and difficult to maintain control over legionella. It is possible that an increased likelihood of legionella being present was caused by water systems that have been shut down, have had minimal water consumption, or have had their management regimes changed during the epidemic. It is imperative that you pay special attention to any and all water-based systems that have the potential to have been turned off at some time. According to the Health and Safety at Work Act of 1974, the Management of Health and Safety at Work Regulations, and more specifically, the Control of Substances Hazardous to Health Regulations of 2002 (coshh), those who are in charge of managing buildings are required to take suitable precautions to have a risk assessment carried out, and depending on the outcome of the assessment, they are required to manage the hot and cold water systems in order to control the growth of bacteria. Any possible risk sources that have been discovered need prompt and appropriate action on the part of the responsible party. It is extremely possible that there will be higher levels of bacteria present in water systems that are not being utilized and maintained as efficiently as they should be. This is becoming more and more apparent, which is one of the reasons why legionella management is now a growing need. Additionally, this is one of the reasons why more people need to invest in this as a service in order to rid themselves of the risk factors that are commonly associated with legionella and the damage that it can do as well. The majority of business settings and properties, including any cooling towers, should have a water safety plan for the management of their hot and cold water systems, which should also include provisions for safe drinking water. To ensure that there is a low level of risk present at the premises, each of these things has to be addressed.