In a remote village, there is a rare, ancient disease affecting 1 in every 1000 people. There is a testing methodology developed to detect this disease. The test is 99% accurate, i.e., the probability that a person suffering from the disease is tested as positive is 0.99, and the probability that a healthy person is tested as negative is also 0.99. A tourist visiting the village undergoes this test for safety reasons and is surprised to see the positive result. What is the probability that the tourist actually has the disease?