Virus strikes 15 million PCs

The Independent on Sunday reported that the worm -- known as Downadup, Conficker or Kido -- had contaminated 6 million PCs in the past three days alone.

The newspaper said more than 3,000 British organizations, including hospitals and the Ministry of Defense, have received the virus.

Officials in Britain, the United States, Russia, China and India say they are waiting to see what the virus's effects will be, if anything.