| 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 |
| intestinal parasites in southeast asian refugees two years after immigration. | we collected stool specimens from 2,520 southeast asian refugees who had resided in the united states for an average of 2.1 years. more than half reported receiving prior treatment of parasites. at least one parasite was discovered in 32%, and multiple parasites were found in 8% of patients. hookworm, giardia, strongyloides, and hymenolepis nana were most commonly found. in comparison to studies done at the time of immigration, all parasites had decreased in frequency, but giardia, hookworm, and ... | 1988 | 3265822 |