Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 3 of 3
Full-Text Articles in Medicine and Health Sciences
On Head Lice And Social Interaction In Archaic Andean Coastal Populations, Bernardo Arriaza, Vivien Standen, Karl Reinhard, Aduto Araújo, Jörg Heukelbach, Katharina Dittmar
On Head Lice And Social Interaction In Archaic Andean Coastal Populations, Bernardo Arriaza, Vivien Standen, Karl Reinhard, Aduto Araújo, Jörg Heukelbach, Katharina Dittmar
Karl Reinhard Publications
Archaic mummies from northern Chile were examined for the presence of Pediculus humanus capitis. The excellent preservation of mummies and louse nits/eggs permitted a study of the degree of head lice infestation. We studied 63 Chinchorro mummies (ca. 5000–3000 years B.P.) from the Arica-Camarones coast. An area of 2 cm × 2 cm on each mummy’s head was systematically inspected for louse nits/eggs. Hairs with nits/eggs and lice were collected and analyzed using optic and scanning electronic microscopy. About 79% (50/63) of the mummies resulted positive for pediculosis, with an average of 2.1 nits/ eggs/cm2 per positive individual. Microscopic …
Atrazine And Nitrate In Public Drinking Water Supplies And Non-Hodgkin Lymphoma In Nebraska, Usa, Martha G. Rhoades, Jane L. Meza, Cheryl L. Beseler, Patrick J. Shea, Andy Kahle, Julie M. Vose, Kent M. Eskridge, Roy F. Spalding
Atrazine And Nitrate In Public Drinking Water Supplies And Non-Hodgkin Lymphoma In Nebraska, Usa, Martha G. Rhoades, Jane L. Meza, Cheryl L. Beseler, Patrick J. Shea, Andy Kahle, Julie M. Vose, Kent M. Eskridge, Roy F. Spalding
School of Natural Resources: Faculty Publications
A secondary analysis of 1999–2002 Nebraska case-control data was conducted to assess the risk of non-Hodgkin lymphoma (NHL) associated with exposure to nitrate- and atrazine-contaminated drinking water. Water chemistry data were collected and weighted by well contribution and proximity of residence to water supply, followed by logistic regression to determine odds ratios (OR) and 95% confidence intervals (CI). We found no association between NHL risk and exposure to drinking water containing atrazine or nitrate alone. Risk associated with the interaction of nitrate and atrazine in drinking water was elevated (OR, 2.5; CI, 1.0–6.2). Risk of indolent B-cell lymphoma was higher …
Paleoparasitology: The Origin Of Human Parasites; Paleoparasitologia: A Origem Dos Parasitas Humanos, Adauto Araújo, Karl Reinhard, Luis Fernando Ferreira, Elisa Pucu, Pedro Paulo Chieffi
Paleoparasitology: The Origin Of Human Parasites; Paleoparasitologia: A Origem Dos Parasitas Humanos, Adauto Araújo, Karl Reinhard, Luis Fernando Ferreira, Elisa Pucu, Pedro Paulo Chieffi
Karl Reinhard Publications
Parasitism is composed by three subsystems: the parasite, the host, and the environment. There are no organisms that cannot be parasitized. The relationship between a parasite and its host species most of the time do not result in damage or disease to the host. However, in a parasitic disease the presence of a given parasite is always necessary, at least in a given moment of the infection. Some parasite species that infect humans were inherited from pre-hominids, and were shared with other phylogenetically close host species, but other parasite species were acquired from the environment as humans evolved. Human migration …