protozoon

Each protozoon makes a biassed random walk about the screen.

A protozoon has a head, labelled' F'.

Once a bacterium has appeared on the screen, it remains there until a protozoon approaches it and eats it.

It is spread from person to person by the bite of the tsetse fly, which carries the protozoon and is famous for that reason.

This explains why AIDS victims are prone to pick up, and indeed eventually die from, opportunistic infections, such as pneumonia caused by the protozoon Pneumocystis carinii.

Trichomonas vaginalis is a protozoon, a one-celled animal which moves about by means of flagellae which work like flexible oars from the broad end of this pear-shaped organism.

When a protozoon divides, its two offspring have almost the same numbers as the parent, but one of them has just one number augmented by 1 and the other has just one number decreased by 1.

However, when both the patient and Dutton were back in Gambia on 15 December 1901, Dutton again examined blood samples and "found a flagellate protozoon evidently belonging to the genus Trypanosoma".

Male contacts of women with trichomonal vaginitis can be shown to harbour the organism in a certain proportion of cases, and this proportion can be increased if extra care and time is taken looking for the protozoon.

"With Chew-Z one can pass from life to life, be a bug, a physics teacher, a hawk, a protozoon, a slime mold, a streetwalker in Paris in 1904, a-" "Even," Leo said, "a gluck.

He synthesized Urea Stibamine (carbostibamide) in 1922 and determined that it was an effective substitute for the other antimony-containing compounds in the treatment of Kala-azar (Visceral leishmaniasis) which is caused by a protozoon, Leishmania donovani.

It is likely that T. vaginalis is not at its happiest in the male urethra, and providing exposure to the protozoon does not again occur during this period, in about a week most men will probably eliminate the organism from the urethra without the aid of treatment.