 But travelers oftentimes bring it back in with them. They go to South America, they go to the Caribbean, they're bitten by a mosquito there, and they come back, and then all of a sudden the symptoms, they don't start for 7 to 10 days until after they're bit. So they come back, and they're feeling terrible, and they're going to the doctors, and the doctor's going, yeah, it's dengue. Now, the good news is,