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1. For a microorganism to enter, invade, or inhabit another organism, causing infection or contamination.
2. To dwell internally, endoparasitically, as opposed to externally (infest).
[L. in-ficio, pp. -fectus, to dip into, dye, corrupt, infect, fr. in + facio, to make]
Farlex Partner Medical Dictionary © Farlex 2012


tr.v. in·fected, in·fecting, in·fects
1. To invade and proliferate in, often resulting in disease. Used of microorganisms or other infectious agents: people who were infected with salmonella.
2. To cause the invasion of (a cell, for example) with a microorganism or other infectious agent: The researchers infected the bacteria with a virus.
3. To transmit a pathogen or disease to: The sick child infected the entire class.
4. To contaminate with a pathogenic microorganism or agent: Cholera infected the water supply.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


1. To enter, invade, or inhabit another organism, causing infection or contamination.
2. To dwell internally, endoparasitically, as opposed to externally.
[L. in-ficio, pp. -fectus, to dip into, dye, corrupt, infect, fr. in + facio, to make]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Patient discussion about infect

Q. Yeast infection in bloodstream How to get rid of yeast infection systemically.

A. there are several treatments and medications against systemic fungal infections, yeasts included. but in order to get treated you have to go through a proper diagnosis and a Dr. should check what kind of fungus you are having and prescribe the medication that fits it. me throwing all sort of medication names won't give you anything. this has to be checked out with a blood test and a culture.

Q. Is this an infection or pregnancy? I am worried with the white odorless mucus discharge. My hubby and I are also trying for baby. I have browsed the web and found that this could be possible infection also. Is this an infection or pregnancy?

A. It’s a cervical discharge and mucus secreted may be majorly a sign of pregnancy. I too had the same symptom but was tested positive for pregnancy. At times it may be a normal vaginal discharge. Generally it will be a yeast infection. Just check for your body temperature changes as it indicates good for you. Your mucus will be like raw egg white, the more thick more chances for positive. Keep a check on these factors. I shall suggest you to visit the doctor to confirm the same instead of making your own conclusions.

Q. What are the symptoms of salmonella infection?

A. Dehydration is the principal clinical concern. The incubation period – the time between ingestion of Salmonella bacteria and the onset of illness – varies from six to 72 hours.Salmonella can cause three different kinds of illness: gastroenteritis, typhoid fever, and bacteremia.Symptoms of Salmonella gastroenteritis include diarrhea, abdominal cramps, fever, nausea, and/or vomiting.In mild cases diarrhea may be non-bloody, occur several times per day, and not be very voluminous; in severe cases it may be frequent, bloody and/or mucoid, and of high volume. Fever generally occurs in the 100°F to 102°F (38°C to 39°C) range. Vomiting is less common than diarrhea. Headaches, myalgias (muscle pain), and arthralgias (joint pain) are often reported as well.Whereas the diarrhea typically lasts 24 to 72 hours, patients often report fatigue and other nonspecific symptoms lasting 7 days or longer. For the full article:

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References in periodicals archive ?
The concept of overall inhalation fraction to characterize a room with a single iF value taking into consideration the impact of different air streamlines, distances, and direction between infector and susceptible occupants is very similar to the concept of a single air exchange value to characterize a whole room.
The packet capturing means capture all packets between infector and victim when the port was opened at the victim side during sending request by the infector computer.
By means of infector row technique, these four germplasm were screened for resistance to rust and LLS under field conditions for 2 rainy seasons (June-July to October-November) at ICRISAT.
As these examples show, structure is in the eye of the infector: the effective degree of structure in the host population depends not only on the hosts' behavior, but also on the dispersal mechanism of the pathogen.
Once the virus is transmitted it will continue to replicate;(132) further stages of HIV infection - including full-blown Aids - are not only foreseeable, they are inevitable.(133) A plaintiff's death from opportunistic infections is also proximately related to the infector's actions, because it is not considered an extraordinary event, but rather an unavoidable consequence of the immunosuppression characterized by HIV.(134)
When the data were ambiguous, the following were reviewed independently by the Korea Centers for Disease Control and Prevention and the Daejeon In-Depth team: all potential exposures by symptom onset; disease duration; physical distance from a patient with a confirmed case; and infector factors including ambulation status, symptoms (including a productive cough), and sharing of caregivers.
In this article, numerical simulations are adopted to investigate the effects of mouth covering on the co-occupant's exposure under MV, under-floor air distribution (UFAD), and DV when the infector coughed at 22 m/s (72.18 if/s) (Zhu et al.
And 2.7 days elapse between when an infector feels sick and the newly infected feels sick, too.
First detected in November 1999, PE_FUNLOVE.4099 is the oldest file infector to appear in the top 20 threats of 2006.
"Benny is known to be the author of many proof-of-concept viruses among which are "Stream" (the first NTFS alternate data streams infector), "Inta" (the first Windows 2000 vires), "HIV", "Champ", "Eva", "Begemot", etc.