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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]


/in·fect/ (in-fekt´)
1. to invade and produce infection in.
2. to transmit a pathogen or disease to.


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.


Etymology: L, inficere, to stain
to transmit a pathogen that may induce development of an infectious disease in another person.


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]

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 probability of getting infected and the number of susceptible occupants were then used to calculate the number of secondary cases arising from the presence of a single infector in the environment.
Generic application infectors make up the third and most widespread category of viruses.
So, there is the presence of a Lyme infector or co-infector(s), on the one hand, and the presence of an actual Lyme infection, on the other.
The convective heat from the infector and the co-occupant are 60 W, respectively.
File infectors insert malicious code into other executables, making them stickier and more difficult to remove than more common worms and Trojans.
Among the trends found, BitDefender Labs saw that file infectors replaced the mass e-mailed viruses that were a concern in the first quarter.
prevalence begins to decline) by implementing a case-based intervention that can stop transmission early enough so that the number of cases produced per infector is <1 (6,16,17).
3]/min]); and the rate of infectious material produced by each infector, known as the quanta generation rate, q (quanta/h).
There are usually two different parts of the virus when we speak of polymorphic virus: The crypto engine encrypts/decrypts the infector.
Boot infector programs embed themselves in this bootstrap instruction sequence and capture the operation.
The effective reproductive number on day t can be interpreted as the average number of new persons infected by an infector who had symptom onset on day t.
The one on the right is assumed to be an infector who emits pathogen-laden droplets, and the other is the receiver, also called the co-occupant.