REFERENCES
- Seyfried PL, Tobin RS, Brown NE, Ness PF. A prospective study of swimming-related illness. I. Swimming-associated health risk. Am J Public Health 1985; 75: 1068–70.
- Corbett SJ, Rubin GL, Curry GK, Kleinbaum DG. The health effects of swimming at Sydney beaches. Am J Public Health 1993; 83: 1701–6.
- Kay D, Fleisher JM, Salmon RL, Wyer MD, Godfree AF, Zelenauch-Jacquotte Z, Shore R. Predicting likelihood of gastroenteritis from sea bathing: results from randomised exposure. Lancet 1994; 344: 905–9.
- Brenniman GR, Rosenberg SH, Northrop RL. Microbiologi-cal sampling variables and recreational water quality stan-dards. Am J Public Health 1981; 71: 283–9.
- Bezirtzoglou E, Dimitriou D, Panagiou A, Kagalou I, Demo-hates Y. Distribution of C. perfringens in different aquatic environments in Greece. Microbiol Res 1994; 149: 1–6.
- Him J, Viljamaa H, Raevuori M. The effect if physicochemi-cal phytoplankton and seasonal factors on faecal indicator bacteria in northern brackish water. Water Res 1980; 3: 279–85.
- Watson-Craik IA, Sinclair-Sulisti KJ, Senior E. Detoxifica-tion of landfill sites. In: Medical and environmental aspects of anaerobes. Petersfield: Wrightson Biomedical Publishing Ltd., 1992.
- Bezirtzoglou E, Romond C. Effect of the feeding practices on the establishment of bacterial interactions in the intestine of the newborn delivered by caesarian section. J Perinat Med 1990; 18: 139–43.
- Lee S, Fuhrman JA. DNA hybridization to compare species compositions of natural bacterioplankton assemblages. Appl Env Microb 1990; 56: 739–46.
- Bezirtzoglou E, Panagiou A, Savvaidis I, Maipa V. Distribu-tion of C. perfringens in polluted lake environments. Anaer-obe 1997; 3: 169–72.
- APHA Standard methods for the examination of water and waste water. American Public Health Association, Washing-ton D.C. (18th edition), 1992.
- Dadswell JV. Microbiological quality of coastal waters and its health effects. Int J Environ Health Res 1993; 3: 32–46.
- Balarajan R, Raleigh VS, Yuen P, Wheeler D, Machin D, Cartwright R. Health risks associated with bathing in seawa-ter. Br Med J 1991; 303: 144–5.
- Hall AJ, Rodrigues LC. Health risks associated with bathing in sea water. Br Med J 1992; 304: 572.
- WHO, Regional Office for Europe. Guidelines for health-re-lated monitoring of coastal recreational and shellfish areas, Part II. Copenhagen, 1994.
- Fattal B, Vasl RJ, Katzenelson E, Shuval HI. Survival of bacterial indicator organisms and enteric viruses in the Med-iterranean coastal waters of Tel-Aviv. Water Res 1983; 17: 397–402.
- Davenport CV, Sparrow EB, Gordon RC. Fecal indicator bacteria persistence under natural conditions in an ice-covered river. Appl Env Microbiol 1976; 32: 527–36.
- Verstraete W, Voets JP. Comparative study of E. coli survival in two aquatic ecosystems. Water Res 1976; 10: 129–36.
- Gonzalez JM, Sherr EB, Sherr BF. Size-selective grazing on bacteria by natural assemblages of estuarine flagellates and ciliates. Appl Env Microbiol 1990; 56: 583–9.
- Panagiou A, Savvaidis I, Theodorou D, Bezirtzoglou E. Influ-ence of light on the presence of C. perfringens in caves. Clinical Infectious Diseases 1995; 20: 380–1.
- Council of European Communities. Directive concerning the quality of bathing water (76/160/EEC) . Official Journal L31/1. 5 February 1976.
- Pike EB. Recreational use of coastal waters: development of health related standards. J IWEM 1993; 7: 162–7.
- Seyfried PL, Tobin RS, Brown NE, Ness PF. A prospective study of swimming-related illness. II. Morbidity and the microbiological quality of water. Am J Public Health 1985; 75: 1071–4.