| results of testing for intestinal parasites by state diagnostic laboratories, united states, 1987. | we analyzed results of 216,275 stool specimens examined by the state diagnostic laboratories in 1987; parasites were found in 20.1%. percentages were highest for protozoans: giardia lamblia (7.2%), entamoeba coli and endolimax nana (4.2% each), blastocystis hominis (2.6%), entamoeba histolytica (0.9%), and cryptosporidium species (0.2%). identifications of giardia lamblia increased broadly from the 4.0% average found in 1979, with 40 states reporting increases and seven decreases. most states th ... | 1991 | 1779956 |
| risk of gastrointestinal disease associated with exposure to pathogens in the sediments of the lower passaic river. | high levels of pathogenic microorganisms have been documented previously in waters of the lower passaic river in northern new jersey. the purpose of this study was to characterize the microbial contamination of river sediments near combined sewer overflows (csos), a known source of pathogens. concentrations of fecal coliform, total coliform, fecal streptococcus, fecal enterococcus, pseudomonas aeruginosa, staphylococcus aureus, giardia lamblia, and cryptosporidium parvum organisms were measured ... | 2008 | 18156335 |