Here is a very interesting piece of research, even though not new. But I only just came across it. The researchers tried to find out if very small currents will reduce the infectivity of HIV. And lo and behold, tiny currents -- in the microamp range -- did do exactly that, and the more current, the more effective they were. Also, a longer exposure was more effective.
Find the article here: http://educate-yourself.org/cn/LymanKaalibiocompatibleHIV1996report18nov06.shtml. The actual published paper starts a bit down.
This research shows that Dr. Clark's proposition of using electricity to combat pathogens was a good idea indeed. In the past few years, several research studies have shown that such current is useful to inhibit cancer cells, also.