immunizer

Viruses can covertly enter your PC via flash drives, for instance, but Bitdefender wards off such threats with its USB Immunizer, a feature that prevents auto-run malware from launching on your PC from a connected drive or memory card.

But for Mr. Ali, the immunizer jumping between buses outside Karachi, the most immediate problem is persuading reluctant parents.

Flu and Tamiflu The large name tag pinned to his short white lab coat proclaims John a "certified immunizer."