In Hong Kong, the Amoy Gardens SARS incident was spread through the sewerage pipes. How can I prevent that from happening where I live?
In Hong Kong, the sewerage system is different from other places, as each of the toilet system is not directly connected to a water trap. Therefore, once the water evaporates, smells and droplets can enter the toilet area. If you sewerage system has water traps below each utility such as the toilet bowl and sink, and as long as the water does not evaporate, there will be less risk of that happening.