The number of people infected with the (A)H1N1 virus, commonly known as swine flu, has risen to 544, according to the Ministry of Health’s Communicable Disease Control Department. Six people, including an 18-month-old boy, have died from swine flu since it was first detected in the Kingdom in June. To combat the spread of the virus, health officials recommend that people wash their hands frequently, refrain from spitting in public, use tissues when coughing or sneezing and avoid crowds.