That makes the antibodies useful weapons in attacking the virus' Achilles heel, and a potentially powerful target for an effective vaccine.

CNN: Possible step toward AIDS vaccine development

Another approach to combating hep C is to stop the virus from replicating by attacking enzymes that let it do so.

FORBES: Magazine Article

He said 5-15% of patients may be functionally cured, meaning they no longer needed drugs, by attacking the virus soon after infection.

BBC: Early HIV drugs 'functionally cure about one in 10'

The researchers said in those with severe disease, the body was responding as if it was attacking a virus, enabling the bacteria to remain hidden and replicate unchallenged within cells.

BBC: 'Wrong' immune response aids TB

And so it's not hard to imagine a chimpanzee being bitten while it's attacking another monkey and picking up virus that way.

NPR: Origin of AIDS Linked to Colonial Practices in Africa

By attacking a loophole in Microsoft's Outlook e-mail program it has rewritten laws of virus prevention and punched a big hole in PC users security systems that others can drive through.

CNN: ASIANOW - Asiaweek | Intelligence | Technology: Bill and the BubbleBoy