Spammers and data thieves are capitalizing on the swine flu media blitz, too. While many folks are flocking to Google and Yahoo for legit information on the outbreak, cybercriminals are infesting email inboxes with tainted messages keying off curiosity about swine flu.

Symantec researcher Mayur Kulkarni isolated a tainted Adobe PDF email attachment titled "Swine influenza frequently asked questions.pdf." If you see this in your inbox, delete it. Clicking on the PDF can deliver a data stealing program.

Analysts at Cisco's Ironport messaging security division say swine flu-themed spam on Monday accounted for 4 percent of global spam. These messages try to get you to click on tainted weblinks, purportedly leading to swine flu-related news stories. Instead, you land on a website controlled by the bad guys from where they can install various malicious programs on your PC. In many instances, you'll get directed to websites selling fake pharmaceutical drugs, according to Cisco Ironport. Symantec and Cisco Ironport recommend immediate deletion of email messages with these subject lines:

-- Swine flu worldwide
-- Swine flu in the USA
-- US swine flue fears
-- First US Sine flue victims
-- Swine flu in Hollywood
-- Salma Hayek caught swine flu
-- Madonna caught swine flu
-- US swine flu statistics
-- NY victims of swine flu
-- First US swine flu victims
-- Will swine flu attack USA?
-- US swine flu fears

By Byron Acohido
Photo: A couple wears masks to prevent contagion of the swine flu in the International Airport of Mexico City, on April 29, 2009. (Luis Acosta/AFP/Getty Images)