Why did many people fall ill? ______made a lot of people fall ill.

It was a cold spring morning in London. People walking in the street were wearing heavy clothes. The weather had been very bad for the past week, and now many people were ill. Today there were quite a few people in the doctor’s waiting room. There were still a few minutes before the doctor started seeing the patients. A woman of about sixty years old was at the front of the queue. She did not live in this city. She came from a farm north of London. She was here to visit her daughter who was a secretary in a big company. She wanted to see the doctor because of her back problem. Soon an Indian came into the waiting room, and walked straight to the doctor’s door. When she saw this, the old woman stood up and took hold of his arm. She said slowly, "We were all here before you. You must wait for your turn. Do... you... understand?" The Indian answered, "No, madam. You don’t understand! You’re all after me! I am the doctor !"