Fleas, HYG-2081-97 Adult fleas are not only a nuisance to humans and their pets, but can cause medical problems including flea allergy dermatitis.. http: //ag.ohio-state.edu/~ohioline/hyg-fact/20...
Fleas, Ticks and Mites - Animal Health Fleas, ticks, and mites are, parasites that live on or burrow into their hosts' skin. Parasites live at least part of their life cycles at the expense of host organisms. http: //animalhealthchannel.com/fleasticksmites...
Headlice Information Questions and answers about headlice including definitions, treatments, contact information, and informationabout research being conducted at the Harvard School of Public Health. http: //hsph.harvard.edu/headlice.html
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