| 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 |
| human and experimental anisakiasis in the united states. | in the past 13 years, 24 cases of anisakiasis have been reported in the united states. of these, 14 were infections by phocanema sp. and found in california and alaska, and most were of the tissue non-invasive type. the remaining 10 cases were infections by larvae of anisakis type i (l3 and l4). of these 10 cases, 4 were found on the west coast, 5 were on the east coast and one was in hawaii. in 3 of the 10 cases, the parasite invaded the digestive tract. a characteristic symptom of the throat n ... | 1986 | 3527918 |
| molecular differentiation and phylogenetic relationships of three angiostrongylus species and angiostrongylus cantonensis geographical isolates based on a 66-kda protein gene of a. cantonensis (nematoda: angiostrongylidae). | the phylogenetic relationships and molecular differentiation of three species of angiostrongylid nematodes (angiostrongylus cantonensis, angiostrongylus costaricensis and angiostrongylus malaysiensis) were studied using the ac primers for a 66-kda protein gene of a. cantonensis. the ac primers successfully amplified the genomic dna of these angiostrongylid nematodes. no amplification was detected for the dna of ascaris lumbricoides, ascaris suum, anisakis simplex, gnathostoma spinigerum, toxocar ... | 2010 | 20566366 |