(CNN) -- As more cases of swine flu are reported in various parts of the world, governments and health officials have scrambled to take precautions to prevent the outbreak from entering their borders. Quarantine officers monitor arrivals with a thermographic device at Bangkok's main international airport. more photos » The World Health Organization urged countries worldwide to look out for "unusual" outbreaks of flu following an emergency meeting. It said it will decide on Tuesday whether to raise the pandemic alert level.The following is sample of what
