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That which, or one who, is capable of persistence; especially a bacterium that exhibits microbial persistence.
Farlex Partner Medical Dictionary © Farlex 2012


A person in whom a pathogen (e.g., HPV) persists, who has an unknown risk of suffering long-term consequences (e.g., CIN or invasive squamous cell carcinoma).
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


Infectious disease A person in whom a pathogen–eg, HPV persists, who has an unknown risk of suffering its long-term consequences–eg, CIN or invasive SCC.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

Patient discussion about persister

Q. Have you ever heard that vaccines cause autism? If so why such thought persist? Hi my new friends! Hope you are all in good health! Have you ever heard that vaccines cause autism? If so why such thought persist? I look forward to reading all of your answers tomorrow.

A. Yes I heard about that and avoided being injected sometimes. This belief persists because signs of autism may appear around the same time that children receive the vaccine that prevents measles, mumps and rubella, and some parents worry that the vaccine caused the autism.

Q. Can lung cancer be diagnosed on behalf of persistent cough? My father is a heavy smoker. He smoked for all his adult life and he never stopped. In the last few weeks he started to have persistent cough attacks. Can those attacks be the first sign of lung cancer?

A. Smoking can damage the lung in many ways. The fact that someone that is a smoker is suffering from chronic cough doesn't mean that he is suffering from lung cancer. To get a cretin diagnosis you will have to do a chest X-ray.
here is a X-ray with the lesion that might be an actual lung cancer

Q. Headache that won’t go away. Help! Hi, I’m 47 years old man, working as accountant. Yesterday afternoon, I came back home, and after some time I started to feel headache that still going. Is it dangerous? Is it possible I have something like bleeding? I wasn’t hit or injured in anyway in my head before this headache appeared

A. There are two types of headaches: primary headaches and secondary headaches. Primary headaches are not associated with (caused by) other diseases. Examples of primary headaches are migraine headaches, tension headaches, and cluster headaches. Secondary headaches are caused by associated disease. The associated disease may be minor or serious and life threatening. Tension headaches are the most common type of primary headache. Tension headaches are more common among women than men. Migraine headaches are the second most common type of primary headache. Secondary headaches have diverse causes, ranging from serious and life threatening conditions such as brain tumors, strokes, meningitis, and subarachnoid hemorrhages to less serious but common conditions such as withdrawal from caffeine and discontinuation of analgesics. In any case if your headache continues you should see your doctor immediately. Hope this helps.

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The goal of this study was to assess the importance of sense of belonging and motivation in predicting intention to persist in college and retention of students from their first to second year.
Campus administrators might now consider measuring undergraduates' hardiness upon their arrival as a proven procedure to identify which new students need the nurturing attention of the expensive retention intervention programs already shown to help undergraduates persist to graduation.
And yet fewer than 1 in 12 doctors have raised concerns with nursing staff in an effective way despite reporting that the problems have persisted for 1 to 5 years or more.
These data suggest that radiographic abnormalities are seen early in the disease, even in asymptomatic or mildly symptomatic individuals, and persist years after removal from exposure.
Nonetheless, to NewCo's detriment, CoreCo's behaviors often persisted. There were powerful forces at work.
Thus, since the pathogen can independently persist in either host population in the absence of the other, following Haydon et al (13), both are considered maintenance hosts.
As a result, the UK pensions regulator is insisting that, as long as underfunding persists, pension plan trustees act as unsecured creditors in negotiating funding with their sponsoring employers.
Pay attention to those desires that persist, month after month, year after year.
Moffatt's work from Nice Coloured Girls, 1987, to Scarred for Life II, 1999, often looks as if it should be understood through the culture of redemption and as the experience of a very contemporary Aboriginality--of indigenous families forcibly separated by racist social policies that persisted well into the '60s, affecting the Stolen Generation to this day.
The fourth and final group consists of bishops who disagree with group one's interpretation of Canon 905, specifically the clause "obstinately persist in manifestly grave sin." Abortion is intrinsically wrong, can never be justified, and breaks the Divine Commandment, "Thou shalt not kill." When a politican is personally informed by his or her bishop of the grave moral offence, even after the Church and especially the Holy Father have continually taught this since the Second Vatican Council (1962-1965, which called abortion an "abominable crime"), then surely, if words mean anything at all, one must speak here of" obstinately persisting in a manifestly grave sin."
Spending in these markets is in an uptrend that will likely persist for the foreseeable future.
It might at first seem strange, given America's budget and trade deficits, that these dynamic Asian economies persist in such a connection, but on a practical level, the link should surprise no one.