Objectives : Monitoring the
microbiological quality of water used for recreational activities is very
important to human public health. However, recreational water should be considered a risk for enteric
infections in regions with high utilization an_d long exposure periods. In
recent years, enterococcal infections have become major therapeutic challenge
because of their increased incidence an_d spread of strains that have acquired
resistance to several antimicrobial agents. The purpose of this
study was to evaluate the microbial contamination an_d Identification Enterococcus species
an_d determination of their susceptibility pattern against antibiotics.
samples which collected in ten prefectures in coastal water of Guilan province
were analysed. then measured parameters including
temperature of waters, turbidity, pH , phosphate an_d
Nitrate . Enumeration
of bacteria performed with MPN method. confirmation of isolated Enterococcus
spp. by chemical an_d differential tests.
Results: The mean number of total Coliforms, fecal
Coliforms an_d Enterococcus spp. In Guilan
province beaches were respectively 11220, 290 an_d 60 per 100 ml of each sample.
Out of 100 samples, 64 cases were positive. E. faecium، E. faecalis an_d E. casseliflavus
were the most prevalent species.
results indicated that the mean of total coliform an_d in ten swimming areas an_d
the mean of fecal coliform in six swimming areas were more than the stan_dard
level. Therefore, these swimming areas are considered as a microbial threat to
swimmers. E. faecium was the predominant species . E. faecium an_d
E. faecalis are thougt to be more specific for man than other
enterococcal species, an_d in comparison with other enterococcal species they
were considered to survive longer once exposed to aquatic environment.
Key words: Enterococcus, fecal coliform, coastal waters,