Volume 68, Issue 4
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645


We used polymerase chain reaction-based DNA profiling to construct allelic profiles for residents and visitors of 22 houses in Florida, Puerto Rico, and human DNA from blood meals in that were collected in those homes. Complete profiles were obtained for ≤ 2 days after blood ingestion. Eighteen percent of the meals came from two different people. There was no evidence of meals from ≥ 2 people. Eighty percent of the meal sources were identified, > 70% were taken from residents of the collection house, and > 90% were from residents of the study community. Across the community, feeding was non-random with a bias towards young adults and males. Three people accounted for 56% of the meals. Our results confirm that multiple feeding on different people is an important component in the role of in dengue virus transmission and help explain the spatial distribution of dengue cases in a previous epidemic in Florida, Puerto Rico.


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  • Received : 13 May 2002
  • Accepted : 04 Dec 2002

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