Back in the early 90s I was working on the Houston sewers, and got really sick. I was like that for a couple weeks, and finally went to the doctor. When I told him the symptoms and the exposure, he prescribed flagyll, which is a potent antibiotic that will wipe out just about every wee beastie in your digestive system. I took that, ate a couple gallons of yogurt, and all better. The doc said I most likely had caught giardia.
i had to take flagyll a couple of months ago after i got back from my trip to peru. i was virtually certain i had giardia (someone in our group was hospitalized while there for it). nasty, hardy bug that giardia is. but the "bitter chalk horse pills," uh, i mean flagyll, wiped it out with no problem. i read that the protozoa can survive in fecal matter for up to a month.
by the way, has anyone felt confident enough with the UV-C products (SteriPen and AquaStar) to use that alone with no chlorine dioxide or iodine tablets? i just saw a local program on public television last night "California's Water," hosted by Huell Howser, in case you wanted to know, and he was at the orange county waste water treatment facility and they make extensive use of UV light to sterilize the water. obviously UV works very well, but for some reason i'm a little reluctant (maybe old fashioned) to rely solely on portable UV devices. anyone have field experience with these?