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Beaver Fever continued from page 5 disease usually has a nine- day cycle from initial infec- tion, to the passage of the first cysts from the hosts. The cysts enter the en- vironment through infected fecal material on land, in water or in food. Animals may pick up the infection from human feces, after which they may con- taminate water sources, commencing a new cycle of infection through the human consumers. Addi- tionally, humans may pick up the infection from direct contact with animals. While water taken from Mainstream lakes can be a source of Giardiasis, the cysts settle rapidly. Natural sedimentation can remove and cover the parasites quickly, keeping them out of the water and away from man until they perish. As contamination from animal feces is more likely to occur at, or near, the water's edge, any risks can be further minimized by locating the drinking water intake pipes at some distance away from the shoreline, as is the -case with most municipal water systems. Normal chlorina- Proof in the pudding by TONY CARLSON Certain words or phrases are guaranteed to raise the hackles on the necks of one group or another. ~ bax. BReakSe por business" is one that cranks up the decibel level a notch or two in many a debate. And with some justification. For many men and women on the street, the arcane world of taxes is as clear as the face of a teen chocoholic. But there is a widely held feeling that businesses which report huge profits should not be making money hand over fist-at the expense of Joe Taxpayer. Professional economists, too, have questioned who benefits from such tax breaks, apart from the cor- porations, of course: Most major academic studies on tax breaks in Canada have, in fact, concluded that such concessions are not par- ticularily effective. But there is compelling new proof from a study done by the Canadian Federation of Independent Business among its Ontario * members that one tax break can be tied directly to the creation of jobs, and lots of them. For three years, Ontario exempted small firms in the province from corporate income tax. CFIB asked its members what effect that had had and almost 14 per cent of those who respond- ed said they had hired more people because of it. In fact, the firms averaged 2.4 more jobs each which, when spread across all the small businesses in the pro- vince; amounts to 48,000 new jobs which resulted directly from that corporate tax holiday. But there is more to this good news. The tax holiday had a positive impact on 60 per cent of those who answered the survey. Those business operators put the money saved to use ina variety of ways. In addition to creating more jobs, 7 per cent increased research and development; 44 per cent poured the money into new factories or equipment; and four out of five shored up their firm's financial-posi- tion after the storms of the recession. Unfortunately, this tax holiday ended in May, to be replaced by an exemp- tion which is good for new small firms in the first three years of their life. ~ That's not good enough, says CFIB President John Bulloch, who urged the province to reinstate the old exemption. "*In many cases, critical job-creating expansion takes place after the third year of a firm's life, when a business identifies a new market niche or an export opportunity," the business leader said. For that reason, then; it's important that the universal tax holiday for Small business be revived. ".* "The premier has said he wants to tie tax incen- tives to job creation,"' Bulloch said. "We're pleased this research shows the corporate tax holiday has been a good investment for the people of Ontario."' And if it works in On- tario, why not in the rest of the country? Pick Up And U Pitch-In '85 tion will not kill the cysts in drinking water, but they are substantially removed by the conventional drink- ing water treatment pro- cesses of coagulation, sedimentation and _filtra- tion. Coagulation combines 'many of the cysts into '*flocs'" which are formed into large soft lumps of sediment in the water being drawn from the lakes for treatment. Once a floc con- taining cysts is formed, it can be "settled out" of the water, or trapped by the filters. While well water in rural areas is usually safe, because the soil acts like a natural filter, some waters taken from surface sources may contain Giardia cysts. Ironically, stréams in isolated areas, because of flow and continuous. tur- bulence, are more likely to keep the cysts in suspen- Terrace Bay-Schreiber News, Wednesday, August 14, 1985, page 7 sion in areas where the parasites are present. Even in mountain areas such as Colorado, where the water may be otherwise pure, streams have often become a source of Giardiasis in- feCtion, because of animal feces entering the water courses. A few simple precautions can greatly minimize the risks to cot- tagers and other rural dwellers. Untreated water taken from streams, even in so-called pristine areas, where campers might feel secure from any pollution, may contain cysts. However, the cysts can be effectively inactivated simply by boiling the drinking water. In our research for this article, we found that the conventional water plants treating municipal water supplies, if well-engineered 'wild and ably operated, are ef- fective in preventing the transmission of water- borne Giardiasis. 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