Clustering of Ascaris lumbricoides and Trichuris trichiura infections within households
| Autor: | Michael H. N. Golden, Marilyn E. Scott, Janet E. Forrester, Donald A. P. Bundy |
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| Rok vydání: | 1988 |
| Předmět: |
Adult
Veterinary medicine Adolescent Trichuriasis Range (biology) Distribution (economics) Biology law.invention law medicine Humans Child Mexico Ascariasis business.industry Public Health Environmental and Occupational Health Age Factors Infant Shanty town General Medicine medicine.disease biology.organism_classification Trichuris trichiura Infections Infectious Diseases Transmission (mechanics) Child Preschool Space-Time Clustering Trichuris trichiura Parasitology Ascaris lumbricoides business Demography |
| Zdroj: | Transactions of the Royal Society of Tropical Medicine and Hygiene. 82(2) |
| ISSN: | 0035-9203 |
| Popis: | A survey of 428 households in a shanty town in Coatzacoalcos, Mexico, revealed high prevalences of Ascaris lumbricoides and Trichuris trichiura . The data were analysed separately for A. lumbricoides and T. trichiura in order to investigate the spatial distribution of heavy infections through the town. Within each age class, those individuals with egg counts in the upper 20% of the range for that age were classified as “heavily infected”. When the data were stratified by household size, it was found that the distribution of “heavily-infected” individuals was not random in the community. “Heavily-infected” individuals were found together in households; fewer household units had a single heavily-infected individual than would be expected by chance. Such a pattern could result either from genetic similarities among family members influencing their ability to mount an effective immunological response to infection, or focal transmission in the vicinity of the home, or both. This result may have important implications for the development of community control programmes. |
| Databáze: | OpenAIRE |
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