slow (redirected from slow virus infections)

slow

reduced speed of action or reaction.

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slow death factor

see algal poisoning.

slow-milking cows

cows that require more than 6 minutes to milk right out; the average is 4 minutes. Caused by a too-small sphincter orifice at the tip of the teat.

slow muscles

red (type I, slow twitch) muscles as distinct from white (type II, fast twitch) muscles. This is not a completely accurate definition but it serves as a generalization. Fast fibers require more stimulation to contract, develop greater tensions and fatigue more quickly than red fibers. See also muscle.

slow release bolus

formulation of drugs into a dense solid bolus, administered by balling gun, designed to dissolve slowly so as to provide a continuous intake of the medication over a period of 3 or 4 days.

slow virus infections

somewhat imprecise term for persistent virus infections characterized by a very prolonged incubation period and a prolonged, slowly progressive clinical course. Originally applied to infection with lentiviruses and the subacute spongiform encephalopathies, now believed to be caused by prions.