Welcome to another site where or another location where rice is grown. This is known as Mabou Guinea. We've come here for, primarily for one purpose to collect the snails. This is an area of Schistosoma so the snail of interest for is actually Biomphalaria. Biomphalaria is a species, and there are many Biomphalaria species. And we have here Rashid, who is a technician for our field station which we shall be visiting. This is Jovin, he's a lecturer at the Kilimanjaro Christian Medical University College. And this is Mr. Asinga, who is also a technologist in the lab which we shall be visiting. Here we shall scoop, as it were. Can we, Rasheed, can we show what we shall do here. We shall, we are looking for Biomphalaria species. And eh, so he's kind of teasing the water there. This is a very important area for transmission in the sense here that water is moving or traveling very, very slowly. So Rasheed will try to identify the Biomphalaria snails which we shall take into the lab. And put strong light on them and see whether they, they will shed cercariae. Shedding of cercariae, for cercariae is very important in the sense that you can take sample, two or three samples from a location like this one and then see whether the snails are infected. cercariae important in the way of natural transmission of the, of the parasite. And also for preparation of cercariaeal antigens, for people who are interested in transmission studies using mice, or non-human primates, you know the monkeys. So, you know, Rasheed when you get a specimen which contains biomphalaria please let's take a good picture of it. At the background here there are children who are fishing. They're looking for fish. And this is very bad for these kids because they all be touching the water. So the possibility that they will be infected is extremely high. >> Yeah. >> Can we see the, the biomphalaria? >> Yeah, see here is. >> Well, show the big one. And they will, you know, so that we can take a, talk about this. This is a big snail. This is literally stationary water, for that matter. And in terms of transmission, this is really, very, very good. When the water is travelling very fast, the possibility of transmission is very, very very low, as we said before. What you see here in the background is also a lot vegetation. The snails do feed, isn't it, Jovin, on the vegetation, you know? This is their primary, you know, food supply. You know, they feed on vegetation here. And this is, this is good for them. He's testing the water here as to get hold of the, of the biomphalaria area snails. [NOISE]. >> Rasheed, we don't need any water at all in the, in this collection jar here, this snails feel okay without any water? >> I think they will okay. >> They'll be okay. >> Yeah. >> Okay, so I guess this is the fourth one. >> Yes. >> So they, they, the children in the background are fishing here and this is a good meal. You know, sometimes they get a bigger snail. As much that's fine, but what we are worried about is the exposure to, to cercariae is, is very, very is, is a matter of concern. And I think they are not aware. Can you bring that one here too? So if they get ten pieces of this fish. This is a meal. As we said, you know, schistosomiasis is a disease of poverty and these people are looking for these fishes for, for a meal. So thank you very much. We have far more of the biomphalaria species here. And this is the the one here. This is, the Bulinus, you know, intermediate host for schistosoma haematobium. So there could be a possibility of a lower infection of I circulating here of hematobium I don't know. This big one here is Bulinus. You see the, the Biomphalaria looks very much like a circular thing here, and when you go to Bulinus is like a corn.
