Being eukaryotic organisms, protozoa and helminths represent a particular challenge ... of antigenically distinct extracellular and obligate intracellular stages. As motile organisms, parasites have ...

J Midwifery Womens Health. 2006;51(6):423-430. Because the sensitivity of a wet mount is low, some women who have a negative wet mount will have trichomoniasis. In a study of 2194 women who ...

IN dark-ground microscopy with the sun as light-source, motile bacteria, when swimming fast, show a tail, as in the top left-hand photograph reproduced. This tail is occasionally seen to untwist ...

The clinical spectrum of intestinal E. histolytica infection ranges from an asymptomatic carrier state to severe invasive disease. Asymptomatic cyst carriage occurs with E. histolytica as well as ...

Additionally, the animal likely had a motile lifestyle, moving along the ocean floor like a Roomba vacuum while absorbing nutrients, such as microscopic algae and bacteria, through its skin.

Detecting danger is key to the survival and success of all species. Animal nervous and immune systems cooperate to optimize danger detection. Preceding studies have highlighted the benefits of ...

Natural killer (NK) cells are the predominant innate lymphocyte subsets that mediate anti-tumor and anti-viral responses, and therefore possess promising clinical utilization. NK cells do not express ...