| antigenic analysis of giardia lamblia from afghanistan, puerto rico, ecuador, and oregon. | the trophozoite antigens of giardia lamblia to which host humoral and cellular immune responses are directed have not been identified. therefore, we initiated studies to characterize these antigens in strains of g. lamblia from afghanistan, oregon, ecuador, and puerto rico. by polyacrylamide gel electrophoresis, the electrophoretic mobility patterns of proteins of the four strains were similar; molecular weights of protein bands ranged between 12,000 and 140,000. the antigens which reacted with ... | 1982 | 7085076 |
| nutritional requirements in parasitic diseases. | "nutritional requirements" means different things in different contexts. generally, the term refers to national or international standards or allowances of nutrients. concern here involves the potential need for a change of standards where conditions of disease prevail, because disease increases the nutritional requirements of most individuals. "nutritional requirements" may also be viewed in terms of food supplies. analysis of a number of studies indicates that the average growth deficit due to ... | 1982 | 6750752 |
| waterborne disease outbreaks, 1986-1988. | from 1986 to 1988, 24 states and puerto rico reported 50 outbreaks of illness due to water that people intended to drink, affecting 25,846 persons. the protozoal parasite giardia lamblia was the agent most commonly implicated in outbreaks, as it has been for the last 10 years; many of these outbreaks were associated with ingestion of chlorinated but unfiltered surface water. shigella sonnei was the most commonly implicated bacterial pathogen; in outbreaks caused by this pathogen, water supplies ... | 1990 | 2156147 |
| prevalence of intestinal parasites in latino residents of chicago. | in 1970, 250,000 spanish-speaking persons resided in chicago, 80,000 of whom were puerto rican. because migration to chicago is constantly occurring from areas where intestinal parasites are endemic, a survey was conducted in a predominantly puerto rican neighborhood to determine the prevalence of these parasites and to provide impetus for further case finding and treatment programs. the survey was part of an epidemiologic and cutreach workers going door-to-door obtained histories, hematocrits, ... | 1975 | 1202954 |