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[Comparative bacteriologic examinations of bathing water in Szczecin province using methods from northern regions of the Federal Republic of Germany and in the Polish State Hygienic Station].
For the purpose of this work was the comparison of the obligatory directive lines using by sanitary-epidemic station in Poland and confrontation with EWG Guideline and comparison of the bacteriological examinations methods of surface waters using in Poland and northern Lands of Germany. The parallel examination of 120 water samples, according to PZH method and the method, using broth's Brila-MUG, prepared by the group of german specialists, were performed. The equivalent results in 60% of tested samples were obtained. If confirmed on purpose the preparating of uniform directive lines and evaluation criterium for maritime and inland bathing waters, according to EWG Guideline, and as well as taking into consideration possibility of application the method with Brila MUG broth to bacteriological examination of maritime bathing waters at first.
Protection from the sun: a survey of area beachgoers.
There is a link between skin cancer and sunlight. A study of area beachgoers reveals gaps in public awareness about the hazards of ultraviolet light. Beachgoers, including children, are ideal target groups for educational programs on ultraviolet protection.
Youth health services at a resort.
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[Cutaneous complications caused by schistosomes: cercarial dermatitis and bilharziasis].
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[Vibrio vulnificus infections in Denmark during the summer of 1994].
The clinical manifestations and epidemiological data of 11 patients infected with Vibrio vulnificus found in Denmark during the unusually warm summer of 1994 are reported. All patients had been exposed to seawater prior to illness, but none had consumed seafood. Nine patients, including four with bacteraemia, developed skin manifestations of various degrees of severity. One patient died of septic shock despite surgery and treatment with relevant antibiotics. Four patients contracted the disease while fishing. High seawater temperature increases the risk of V. vulnificus infections even in temperate climates such as the Danish. Exposure to seawater, including handling of fresh seafood, during warm periods carries a risk of infection with V. vulnificus.
[Causes, mechanism and surgical care in propeller injuries].
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[Cyanobacteria, their toxins and health risks].
Cyanobacteria (blue-green algae) commonly occur in fresh and brackish water where they produce blooms under certain environmental and climatic conditions. Since some species produce neurotoxins, hepatotoxins, cytotoxins, and endotoxins, blooms can be hazardous for animal and human health. Several cases of human cyanobacterial poisoning have been documented, but accurate assessment of the risk is difficult for lack of knowledge concerning exposure levels and the incidence of this kind of poisoning. Most human cases have been reported after oral consumption of contaminated drinking water or swimming in recreation waters where blooms have occurred. Further study is needed to evaluate and manage this risk, especially in regions dependent on surface water for drinking and recreational water areas. This is especially true in tropical and intertropical areas where climatic conditions promote occurrence of cyanobacteria blooms and nothing is known of the impact on public health.
[Acoustic climate of seashore spas as well as camping and tenting lots of the Hel Peninsula].
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Comparison of BGB-MUG and LSTB-MUG in microbiological surveillance of recreational waters.
Recreational water surveillance is an important tool to prevent health hazards for the population. Therefore distinct guide and imperative values for fecal indicators are listed in the EC directive about water quality control. The detection methods, however, give laboratories some room to choose their own method, which has led to difficulties in the comparability of results. In 1989 an ad-hoc working group of the coastal countries of Germany established detection methods, which by now are obligatory for these countries. Fecal and total coliforms (FC and TC) are detected by a triplicate mpn-procedure using brilliant green-bile-lactose broth supplemented with tryptophane and 4-methylumbelliferyl-beta-D-glucuronide (BGB-MUG) as selective medium. Gas-, fluorescence- and indole-positive cultures are considered fecal coliform-positive. In the last years rises in TC but not in FC counts were observed in fresh waters. A study was carried out to evaluate the official method in another bathing season, to determine bacterial species leading to false-positive TC cultures and to compare BGB-MUG with laurylsulphate-tryptophane-MUG (LSTB-MUG). Water samples of different salinities and nutrient input were collected in weekly intervals from April to October. FC and TC concentrations were determined and all TC-positive cultures were differentiated further. The FC counts obtained by enrichment in BGB-MUG or LSTB-MUG were nearly identical, the rate of fluorescence-positive, indole-negative tubes being approximately 0.6%. Differentiation of FC-negative cultures showed a false-negative rate of 2.87% for BGB-MUG and of 8% for LSTB-MUG. During the summer months TC counts in BGB-MUG exceeded FC counts by far at most of the sampling sites. This effect was much less pronounced in LSTB-MUG; the difference between both enrichment media being significant. Differentiation of presumptive TC from BGB-MUG resulted in a high percentage of Aeromonas spp. in fresh waters. LSTB-MUG was clearly more selective for TC than BGB-MUG, but still with an average of 10% of the test tubes being false TC-positive (BGB-MUG 46%). The sensitivity of BGB-MUG was below 60% (LSTB-MUG 89%). LSTB-MUG should be preferred as enrichment medium in mpn-examination of recreational water, if no further differentiation is carried out. The selectivity for TC is better than in BGB-MUG and the only slight inhibitory effects can be tolerated.
[Bathing water related diseases: the Carinthian Sentinel Project as the source of epidemiological data].
The federal country of Carinthia is known for its lakes and ponds, which are extensively used for bathing. The water quality is monitored regularly in accordance to the EC-Directive 76/160/EC and especially to the more rigorous Austrian Standard M6230. Since redevelopment measures of the lakes have been nearly finished the water quality found has improved essentially. In spite of these monitored data no effective correlation to data from the concerning ambulant sector of medical care could be established. The Carinthian Sentinel Practice Network started in summer 1994 to retrieve informations about occurrence and frequency of bathing related illness of children up to 16 years old. The 26 participating primary health care and pediatric physicians, having their own independent practices spread all over the country, reported the specific doctor-patient-contracts to the coordinating base. Criteria for inclusion in the medical report were headache, sore throat, otalgia, stomach-ache, nausea, emesis, diarrhoea, fever, rhinitis, cough, cold, moreover conjunctivitis, skin rash and specific dermatitis. In addition physicians reported where, how long and how often the children had been bathing and how long they had been free of symptoms afterwards. Each case was reported to the coordinating base including a presumed diagnosis. Statistic evaluation showed that bathing related illness may be divided into three main groups according to symptom frequency. The frequency of otalgia (32.4%) was significantly higher than any other symptom asked for. Two groups of symptoms correlate with each other: on one hand rhinitis, conjunctivitis, cough and sore throat (36.5%) and on the other hand nausea, emesis, diarrhoea and fever (41.9%). These data underline conclusions drawn by other authors but are not representative enough to correlate to data from water monitoring. First results suggest that conclusions for public health authorities can be drawn from this additional information about the state of the lakes and ponds-providing a sufficient number of data is reported.
[Hygienic characteristics of sea and ocean pollution].
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Health risks associated with pollution of coastal bathing waters.
A number of bacterial, viral and other diseases can be contracted by man through exposure to sewage-polluted bathing-water or beach sand. The increasing use of the sea for recreation has led to major concern regarding health hazards to both local and tourist populations. Epidemiological studies attempting to correlate microbiological water quality with health effects have produced different results, leading to a wide variation in recreational water quality criteria and standards applied, and to considerable controversy regarding their implementation. The Mediterranean provides a good example of a problem region where health risks are accentuated as a result of high utilization of bathing areas coupled with long exposure periods. Coastal pollution by sewage is still a major concern and control measures vary considerably. A number of microbiological/epidemiological studies have been carried out since 1953 in an attempt to define the levels of risk following exposure to different concentrations of bacteria in bathing waters. Most of these have been prospective studies whose design involved subject recruitment on the beach itself, classification of swimmers on the basis of immersion of the head in the water, and follow-up interviews after 7-10 days, together with a system for validation of gastrointestinal symptomatology. Practically all studies showed higher morbidity among bathers as compared to non-bathers, but correlation between specific symptoms and bacterial indicator concentrations varied considerably. On the basis of the 1972-1978 Cabelli Environmental Protection Agency (EPA) study in the United States of America, later developed by EPA into a recommended health-effects criterion for marine recreational waters, one would expect 25-40 gastrointestinal cases per 1,000 persons exposed to seawater containing 100 enterococci per 100 ml. Extrapolation of these figures to annual bathing populations indicates the potential magnitude of the problem. Much more work is needed however before a satisfactory dose-response relationship is obtained, principally because of confounding factors inherent in all studies carried out so far, which still require a solution.
Swimming-associated outbreak of Escherichia coli O157:H7.
In 1997 the first outbreak of Escherichia coli O157:H7 infections involving 14 cases occurred in Finland. A case was defined as a resident of Alavus with an episode of diarrhoea between 5 and 17 July 1997, and from whom E. coli O157:H7 was isolated from stool. The investigation included case searching and a population-based case control study. Five primary and eight symptomatic secondary cases of E. coli O157:H7 illness were detected. In the 10 days before the outbreak, all 5 primary patients (aged 3-8 years), but only 6 of 32 population controls from the same age range (Fisher's test, P < 0.001) and 4 of 10 sibling controls (P < 0.05) had visited (but had not necessarily bathed in) a shallow beach popular among young children. Four out of 5 primary cases had remained within 5 m of the beach while swimming and had swallowed lake water compared to 1 of 5 population controls. These analytical epidemiologic findings incriminated fresh lake water as the vehicle of E. coli O157:H7 transmission.
Monitoring of selected bacteria and fungi in sand and sea water along the Tel Aviv coast.
Monitoring sand and sea water of the Mediterranean Tel Aviv beaches during 1989-1991 for bacterial quality showed varying data and no correlation between standard bacteria parameters (SBP) and potential pathogenic bacteria (PPB). An exceptional feature was observed in 1989 when faecal coliforms including Escherichia coli and faecal Streptococcus were less in sand than in sea water. These results may be attributed to the low turbulent activity of the sea in 1989, particularly in summer, compared with the next two years. In 1990 the number of SBP and PPB was always higher in sand than in sea water. The most frequent micro-organisms isolated from sand were E. coli, Pseudomonas aeruginosa and Candida albicans. Intensive engineering work and the construction of a chlorinator for sewage probably caused a dramatic drop in the number of SBP and PPB in sea water and sand during 1990-1991 on some beaches. Campylobacter jejuni was isolated from sand, and may be considered a possible hazard factor for enteritis in the population bathing at these beaches.
Predicting the effect of livestock inputs of E. coli on microbiological compliance of bathing waters.
Three alternative approaches to predicting delivery of faecal indicators from livestock sources to surface water in the catchment of the River Irvine, Ayrshire, Scotland, are described. These are a soil transport model which assumes all E. coli are transported through the soil, a regression model using observed E. coli concentrations in surface waters, and a distributed catchment model (PAMIMO). Each of these is linked to a simple group of equations describing inputs of E. coli from livestock to land, transport and inactivation in the river Irvine and mixing and inactivation in the sea. The models predict E. coli content of bathing water for Irvine beach. The regression model gives the best predictions of bathing water quality. The low values predicted by the soil transport model suggests that preventing surface runoff of faecal indicators from livestock would provide an adequate solution to the problem of bathing water contamination.
Seabather's eruption.
BACKGROUND: Seabather's eruption is an annoying pruritic dermatitis that appears on the areas covered by the bathing suit as an erythematous macular or papular dermatitis, with or without urticaria. It occurs sporadically in Florida, the Caribbean, and as far north as Bermuda. The cause is not known. METHODS: We collected information in Nassau County, Long Island, New York, about cases of all types of water-related dermatitis reported by beach personnel, health providers, and affected swimmers from 1970 through 1991. Concurrently, we surveyed all Nassau County swimming waters, especially during the summer season (June through September), for the presence of organisms capable of causing dermatitis. In 1980 a sudden epidemic of a severe, unfamiliar dermatitis in ocean bathers prompted increased surveillance of cases and waters. Planula larvae of the phylum Cnidaria were collected from the ocean and beaches and inside bathing suits. They were examined, photographed, tested on healthy subjects, and observed in the laboratory for metamorphosis. RESULTS: Three outbreaks of seabather's eruption have occurred on Long Island since 1975. The first, in August 1975, affected a small number of swimmers on the eastern end of Long Island. In 1980 there were thousands of cases along the entire south shore of the island, and in 1990 there were hundreds in the same area. In nonepidemic years, five or fewer cases have been reported yearly. Surveillance for larvae revealed them to be present during the swimming season in epidemic years, but in nonepidemic years they did not appear until autumn, after the swimming season. Applying larvae to the skin of healthy subjects produced a dermatitis indistinguishable from seabather's eruption. All larvae metamorphosed in the laboratory to the adult sea anemone Edwardsiella lineata. CONCLUSIONS: Seabather's eruption, previously reported only as sporadic cases in southern climates, has occurred sporadically and in outbreaks 1000 miles north of most previously described cases. These Long Island episodes were probably caused by the planula larvae of E. lineata.
Fluctuations in body satisfaction across situations.
Although the variable nature of body image was underscored by Schilder (The image and appearance of the human body. New York: International Universities Press, 1950), few investigators have addressed the stability of body image or its sensitivity to variation in environmental or situational conditions. Most researchers have assumed that body image is a stable characteristic. The present study was designed to investigate the situational specificity of body satisfaction, one facet of body image. One hundred forty-four undergraduate women indicated their degree of body satisfaction in general and in the following four situations: (a) walking by a group of attractive men and women at the beach in a bathing suit, (b) having a conversation with a close female friend over lunch, (c) getting dressed to go to school in privacy, and (d) trying on bathing suits in the dressing room of a department store. Body satisfaction varied significantly across the four situations for all body parts except the face, hair, and hands. Additionally, body satisfaction scores were found to reflect how subjects felt about their bodies when they were being especially self-critical, rather than how they felt in "everyday" situations.