 The global burden. So what are these waterborne diseases and why are we studying them? The problem here is they are a burden to the public health. We take, for example, waterborne diseases, they are being transmitted by water, contaminated water, you see. So these diseases constitute a major, major problem in health, in our public health. So if you want to compare all the diseases of this world that cause dirt, these waterborne diseases, they cause four percent of dirt, which is about 1.4 million dirt annually. So in these waterborne diseases, research has shown that children are most affected and aquatic life, such as runoff, loading of coastal waters with pathogens. For example, if we look at a wastewater treatment plant, the example of the one that is in Hamburg, research for maybe two years ago, when I researched on these waterborne diseases, we found that after we know that in the wastewater treatment plant, we undergo a series of purification and so on. So at the end, at the effluent, which is supposed to be flushed into the river, a lot of parasites were found in. Where are these parasites going into the river? So we are going to know more about it. And we talk about socioeconomic impact. How do these parasites impact the social status of our well-being? When people are affected with these parasites, some, the people who are working in agriculture, maybe they don't go to the farm again and it lowers their status. And if you are affected with these parasites, maybe you stay at home, you are supposed to go out and socialize, it costs a lot to you.