The invasion and multiplication of microorganisms such as bacteria, viruses, and parasites that are not normally present within the body. An infection may cause no symptoms and be subclinical, or it may cause symptoms and be clinically apparent. An infection may remain localized, or it may spread through the blood or lymphatic vessels to become sys [..]

The body's initial reaction to infection by the HIV virus. Acute HIV infection is a flu-like syndrome that occurs immediately after a person contracts HIV (the human immunodeficiency virus 1, the agent that causes AIDS). The syndrome is characterized by fever, sore throat, headache, skin rash and swollen glands (lymphadenopathy). This syndrome [..]

Infection with one of a group of viruses responsible for a spectrum of respiratory disease as well as infection of the stomach and intestine (gastroenteritis), eyes (conjunctivitis), and bladder (cystitis) and rash. Adenovirus respiratory diseases include a form of the common cold, pneumonia, croup, and bronchitis. Patients with compromised immune [..]

See: Breast infection. See also: Mastitis.

//www.medicinenet.com/group_b_strep/article.htm">group B strep: Group B strep are a major cause of infections involving the pregnant woman and her newborn infant, causing maternal infections of the uterus, placenta, and urinary tract and infections in the infant that can be localized or involving the infant's entire body. (Group B stre [..]

An infection caught while hospitalized. The medical term for a hospital-acquired infection is nosocomial. Most nosocomial infections are due to bacteria. Since antibiotics are frequently used within hospitals, the types of bacteria and their resistance to antibiotics is different than bacteria outside of the hospital. Nosocomial infections can be s [..]

See: Leishmania infection.

Acute middle ear infection, medically called acute otitis media is inflammation of the middle ear. Acute otitis media typically causes fluid in the middle ear accompanied by signs or symptoms of ear infection: a bulging eardrum usually accompanied by pain; or a perforated eardrum, often with drainage of purulent material (pus).Otitis media is the m [..]

See: Meningococcal infection.

An infection acquired in a hospital. Specifically an infection that was not present or incubating prior to the patient being admitted to the hospital, but occurred after admittance to the hospital. After antibiotics came into common usage in the second half of the 20th century, bacteria resistant to antibiotics were selected for, especially in hosp [..]

An infection that grasps the opportunity to cause disease, which is presented when a person's immune system is weak. These opportunistic microorganisms may be dormant in the body and may cause few problems for healthy individuals. Opportunistic infections are a particular problem for organ transplant patients and those with diseases that affec [..]

An infestation of the intestinal tract by small, white pinworms (Enterobius vermicularis). Pinworms are about the length of a staple, and they live for the most part within the human rectum. While a pinworm-infested person is asleep, female pinworms leave the intestines through the anus and deposit eggs on the skin around the anus. Most symptoms of [..]

Known medically as cysticercosis, an infection caused by Taenia solium (the pork tapeworm). Infection occurs when the tapeworm larvae enter the body and form cysticerci (SIS-tuh-sir-KEY) (cysts). When cysticerci are found in the brain, the condition is called neurocysticercosis (NEW-row SIS-tuh-sir-KO-sis). The tapeworm that causes cysticercosis is [..]

The first few months after infection with HIV (the human immunodeficiency virus). During primary HIV infection, seroconversion occurs -- the appearance of detectable antibodies to HIV in the blood. It normally takes several weeks to several months for antibodies to the virus to develop after HIV transmission. When antibodies to HIV appear in the bl [..]

See rotavirus.

Infection from a type of parasitic worm that hatches in the intestines and lives there. The eggs of the roundworm usually enter the body through contaminated water or food or on fingers placed in the mouth after the hands have touched a contaminated object. Symptoms from roundworm infections include fatigue, weight loss, irritability, poor appetite [..]

An infection in the urinary system that begins when microorganisms cling to the opening of the urethra (the canal from the bladder) and begin to multiply. Most UTIs are due to one type of bacteria, E. (Escherichia) coli, a normal denizen of the colon. An infection in the urethra leads to inflammation called urethritis. From there bacteria may move [..]

This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead tissue from the mouth and throat due to the spread of infection from the gums. Certain germs (including fusiform bacteria and spirochetes) have been thought to be involved, but the full story behind this long-known disease is still not clear. T [..]

Infection due to fungal organisms which have the characteristic of being single-celled, usually rounded and reproduce by budding. Most yeast are harmless (some are used in baking and brewing). Yeast is commonly present on normal human skin and in areas of moisture, such as in the mouth and vagina, usually without any problems. However, yeast can ca [..]

The invasion and growth of germs in the body. The germs may be bacteria, viruses, yeast, fungi, or other microorganisms. Infections can begin anywhere in the body and may spread all through it. An inf [..]

Disease caused by microorganisms

late 14c., "infectious disease; contaminated condition;" from Old French infeccion "contamination, poisoning" (13c.) and directly from Late Latin infectionem (nominative infectio) [..]

The state or condition in which the body (or part of the body) is invaded by an infectious agent (e.g. a bacterium, fungus, or virus), which multiplies and produces an injurious effect (active infecti [..]

disease caused by microscopic organisms, such as bacteria.

contamination or invasion by harmful organisms, such as a virus.

The establishment of the pathogen in the host.

when a pathogen invades plant tissue and establishes a parasitic relationship between itself and the host

The condition reached when a pathogen has invaded plant tissue and established a parasitic relationship between itself and its host.

the pathological state resulting from the invasion of the body by pathogenic microorganisms (phonetics) the alteration of a speech sound under the influence of a neighboring sound an incident in which [..]

The entry of a pathogen into a host and establishment of the pathogen as a parasite of the host.

An illness caused by a germ or virus.

infection (pop)

Invasion of the body by agents (bacteria, viruses or fungi) that cause disease or tissue damage.

An invasion of the BioCosmos

This module introduces the physiology of important viruses, antiviral therapies and diagnosis using clinical case studies. It also covers a range of important microparasites, the diseases they cause a [..]

entry of pathogenic microorganisms into the body.

An invasion of an organism by a pathogen such as bacteria or viruses, often causing an immune response from the host. Some infections lead to disease. Source: CDC

The growth of a parasitic organism within the body. (A parasitic organism is one that lives on or in another organism and draws its nourishment therefrom.) A person with an infection has another organism (a "germ") growing within him, drawing its nourishment from the person.

invasion of the body by organisms. infectious disease -

diseased area of the body (viral or bacterial)

This refers to the process of a virus

(n) the pathological state resulting from the invasion of the body by pathogenic microorganisms(n) (phonetics) the alteration of a speech sound under the influence of a neighboring sound(n) (medicine) [..]

  Invasion of the body with organisms that have the potential to cause disease.

Causing disease, especially by the presence of foreign microorganisms in the body, including bacteria, viruses or parasites.

The growth of harmful organisms that can cause disease, such as bacteria, in the body.

Reaction of the body to injury or infectious, allergic, and chemical irritation and manifested by pain, heat, swelling, and redness.

  long before Pasteur discovered that infections were caused by micro-organisms there was an appreciation that disease could be passed from person to person called the contagion theory. There was a co [..]

When germs get inside your body, they can multiply and cause an infection. Your body's immune system fights off the germs with special cells. It can become a full-on fight against the nasty invad [..]

An Infection caused by an organism which becomes pathogenic under certain conditions, e.g., during Immunosuppression.

Virus Diseases caused by the Orthomyxoviridae.

Infections with nematodes of the order Oxyurida.

Infection with Trematoda of the genus Paragonimus.

Infections with Viruses of the Family Paramyxoviridae. This includes Morbillivirus Infections; Respirovirus Infections; Pneumovirus Infections; Henipavirus Infections; Avulavirus Infections; and Rubul [..]

Mild to severe Infections of the eye and its adjacent structures (adnexa) by Adult or larval protozoan or metazoan Parasites.

Virus Infections caused by the Parvoviridae.

Infections with Bacteria of the genus Pasteurella.

Infections with Bacteria of the Family Pasteurellaceae.

Infection involving the Tissues or organs in the Pelvis.

Infectious processes, including Abscesses, effusions, and empyemas which occur in the epidural or subdural spaces surrounding the Brain and spinal cord.

Infections with Viruses of the genus Pestivirus, Family Flaviviridae.

Virus Diseases caused by the Picornaviridae.

A protozoan Disease caused in Humans by four species of the Plasmodium genus: Plasmodium falciparum; Plasmodium vivax; Plasmodium ovale; and Plasmodium malariae; and transmitted by the bite of an infe [..]

Infections with species in the genus Pneumocystis, a Fungus causing interstitial Plasma Cell Pneumonia (Pneumonia, Pneumocystis) and other Infections in Humans and other Mammals. Immunocompromised Pat [..]

Infections with Viruses of the genus Pneumovirus, Family Paramyxoviridae. This includes Respiratory Syncytial Virus Infections, an important cause of respiratory Disease in Humans.

Virus Diseases caused by the Poxviridae.

Infections with Bacteria of the genus Proteus.

Infections with unicellular organisms formerly members of the subkingdom Protozoa.

Infections with Bacteria of the genus Pseudomonas.

An Infection occurring in Puerperium, the period of 6-8 weeks after giving Birth.

Infections produced by reoviruses, general or unspecified.

Invasion of the host Respiratory System by microorganisms, usually leading to Pathological Processes or Diseases.

Virus Diseases caused by the Retroviridae.

Infections with nematodes of the order Rhabditida.

Virus Diseases caused by Rhabdoviridae. Important Infections include Rabies; Ephemeral Fever; and Vesicular Stomatitis.

Infections by the genus Rickettsia.

Infections with Bacteria of the Family Rickettsiaceae.

Infection with Roseolovirus, the most common in Humans being Exanthema Subitum, a benign Disease of Infants and young Children.

Infection with any of the Rotaviruses. Specific Infections include Human Infantile Diarrhea, neonatal calf Diarrhea, and Epidemic Diarrhea of Infant Mice.

Virus Diseases caused by the Rubivirus genus, of the Family Togaviridae.

Infections with Viruses of the genus Rubulavirus, Family Paramyxoviridae.

Infections with Bacteria of the genus Salmonella.

Schistosomiasis caused by Schistosoma mansoni. It is endemic in Africa, the Middle East, South America, and the Caribbean and Affects mainly the bowel, spleen, and liver.

Infection with Larvae of the blow fly Cochliomyia hominivorax (Callitroga americanum), a common cause of Disease in Livestock in the southern and southwestern U.S.A.

Infections with nematodes of the subclass Secernentea.

Infections with Bacteria of the genus Serratia.

Infections of non-skeletal Tissue, i.e., exclusive of bone, Ligaments, Cartilage, and fibrous Tissue. The concept is usually referred to as Skin and soft Tissue Infections and usually subcutaneous and [..]

Infections with Bacteria of the order Spirochaetales.

Infections with nematodes of the order Spirurida.

Infections with Bacteria of the genus Staphylococcus.

Infections to the Skin caused by Bacteria of the genus Staphylococcus.

Infections with Bacteria of the genus Streptococcus.

Infections with Bacteria of the species Streptococcus pneumoniae.

Infections with nematodes of the order Strongylida.

Infection occurring at the site of a surgical incision.

Infection with Tapeworms of the genus Taenia.

Virus Diseases caused by the Togaviridae.

Infections with Viruses of the genus Torovirus, Family Coronaviridae.

The acquired form of Infection by Toxoplasma gondii in Animals and man.

Infections caused by infestation with worms of the class Trematoda.

Infections with Bacteria of the genus Treponema.

Infections in Birds and Mammals produced by various species of Trichomonas.

Infections produced by Oncogenic Viruses. The Infections caused by DNA Viruses are less numerous but more diverse than those caused by the RNA Oncogenic Viruses.

Infections with Bacteria of the genus Ureaplasma.

Inflammatory responses of the Epithelium of the URINARY TRACT to microbial invasions. They are often Bacterial Infections with associated Bacteriuria and Pyuria.

Infections with Bacteria of the genus Vibrio.

Viral Infections of the Brain, spinal cord, Meninges, or perimeningeal spaces.

Infections of the eye caused by minute intracellular agents. These Infections may Lead to severe Inflammation in various parts of the eye - Conjunctiva, Iris, eyelids, etc. Several Viruses have been i [..]

Invasion of the site of Trauma by pathogenic microorganisms.

Infections with Bacteria of the genus Yersinia.

Invasion of the host organism by microorganisms that can cause pathological conditions or Diseases.

Infections with Bacteria of the genus Actinobacillus.

Infections with Bacteria of the genus Actinomyces.

Infections with Bacteria of the order Actinomycetales.

Virus Diseases caused by the Adenoviridae.

Infections with Bacteria of the genus Aliivibrio.

Virus Diseases caused by members of the Alphavirus genus of the Family Togaviridae.

Infections with Bacteria of the Family Anaplasmataceae.

Infections with unicellular organisms formerly members of the subkingdom Protozoa. The Infections may be experimental or veterinary.

Infections in Animals with Bacteria of the genus Salmonella.

Infections with nematodes of the subclass Adenophorea.

Infections caused by Arthropod-Borne Viruses, general or unspecified.

Virus Diseases caused by the Arenaviridae.

Infections caused by Viruses of the genus Arterivirus.

Infections with nematodes of the order Ascaridida.

Infections with ASTROVIRUS, causing Gastroenteritis in Human Infants, calves, lambs, and piglets.

Infections that do not exhibit symptoms.

Infections with Viruses of the genus Avulavirus, Family Paramyxoviridae. This includes Newcastle Disease and other Infections of Domestic Fowl.

A group of Tick-Borne Diseases of Mammals including Zoonoses in Humans. They are caused by protozoa of the genus Babesia, which parasitize Erythrocytes, producing Hemolysis. In the U.S., the organism& [..]

Infections with Bacteria of the Family Bacillaceae.

Infections by Bacteria, general or unspecified.

Infections in the inner or external eye caused by microorganisms belonging to several Families of Bacteria. Some of the more common genera found are Haemophilus, Neisseria, Staphylococcus, Streptococc [..]

Infections with Bacteria of the Family Bacteroidaceae.

Infections with Bacteria of the genus Bacteroides.

Infections by the genus Bartonella. Bartonella bacilliformis can cause acute febrile Anemia, designated Oroya Fever, and a benign Skin eruption, called verruga peruana. Bartonella quintana causes Tren [..]

Infections with Bacteria of the Family Bartonellaceae.

Infections with Bacteria of the order BifidoBacteriales. This includes Infections in the genera Bifidobacterium and Gardnerella, in the Family BifidoBacteriaceae.

Virus Diseases caused by the Birnaviridae.

Infections with organisms of the genus Blastocystis. The species B. hominis is responsible for most Infections. Parasitologic surveys have generally found small numbers of this species in Human stools [..]

Infections with Bacteria of the genus Bordetella.

Infections with Bacteria of the genus Borrelia.

Infections with Bacteria of the genus Burkholderia.

Virus Diseases caused by Caliciviridae. They include Hepatitis E; Vesicular Exanthema of Swine; acute Respiratory Infections in felines, rabbit hemorrhagic Disease, and some cases of Gastroenteritis i [..]

Infections with Bacteria of the genus Campylobacter.

Pathological conditions of the Cardiovascular System caused by Infections.

Infections caused by Viruses of the genus Cardiovirus, Family Picornaviridae.

Infections resulting from the use of Catheters. Proper aseptic technique, site of Catheter placement, material composition, and Virulence of the organism are all factors that can influence possible In [..]

Infections of the Brain, spinal cord, or Meninges by single celled organisms of the former subkingdom known as protozoa. The Central Nervous System may be the primary or secondary site of protozoal In [..]

Infections with true Tapeworms of the Helminth subclass Cestoda.

Infections with Bacteria of the genus Chlamydia.

Infections with Bacteria of the Family Chlamydiaceae.

Infections with Bacteria of the genus Chlamydophila.

Infections with protozoa of the phylum Ciliophora.

Virus Diseases caused by the Circoviridae.

Infections with Bacteria of the genus Clostridium.

Infection with a Fungus of the genus Coccidioides, endemic to the Southwestern United States. It is sometimes called valley Fever but should not be confused with Rift Valley Fever. Infection is caused [..]

Any Infection acquired in the community, that is, contrasted with those acquired in a Health care facility (Cross Infection). An Infection would be classified as community-acquired if the Patient had [..]

Prenatal protozoal Infection with Toxoplasma gondii which is associated with injury to the developing fetal Nervous System. The severity of this condition is related to the stage of Pregnancy during w [..]

A severe, often fatal Disease in Humans caused by the Crimean-Congo hemorrhagic fever virus (Hemorrhagic Fever Virus, Crimean-Congo).

Virus Diseases caused by Coronaviridae.

Virus Diseases caused by the Coronavirus genus. Some specifics include Transmissible Enteritis of Turkeys (Enteritis, Transmissible, of Turkeys); Feline Infectious Peritonitis; and Transmissible Gastr [..]

Infections with Bacteria of the genus Corynebacterium.

Any Infection which a Patient Contracts in a Health-care institution.

Infection with Cytomegalovirus, characterized by enlarged Cells bearing Intranuclear Inclusions. Infection may be in almost any organ, but the Salivary Glands are the most common site in Children, as [..]

Inflammation of the LIVER in Humans caused by Hepatitis Delta Virus, a defective RNA Virus that can only infect Hepatitis B Patients. For its viral coating, Hepatitis Delta Virus requires the Hepatiti [..]

Infections caused by the HTLV or BLV deltaretroviruses. They include Human T-Cell Leukemia-Lymphoma (Leukemia-Lymphoma, T-Cell, Acute, HTLV-I-Associated).

Secondary or systemic Infections due to dissemination throughout the body of microorganisms whose primary focus of Infection lies in the periodontal Tissues.

Infections with Bacteria of the Family Desulfovibrionaceae.

Infection with nematodes of the genus Dictyocaulus. In Deer, Cattle, Sheep, and Horses the Bronchi are the site of infestation.

Infections with nematodes of the genus Dipetalonema.

Infectious Disease processes, including Meningitis, Diarrhea, and respiratory disorders, caused by Echoviruses.

Infections with nematodes of the order Enoplida.

Infections with Bacteria of the Family Enterobacteriaceae.

Infection with nematodes of the genus Enterobius; E. vermicularis, the Pinworm of man, causes a crawling Sensation and Pruritus. This condition results in scratching the area, occasionally causing sca [..]

Infection of Horses with parasitic nematodes of the superfamily Strongyloidea. Characteristics include the development of hemorrhagic nodules on the abdominal Peritoneum.

Infections with Bacteria of the genus Erysipelothrix.

Infections with Bacteria of the species Escherichia coli.

Infections with the protozoa of the phylum Euglenozoa.

Infection, moderate to severe, caused by Bacteria, Fungi, or Viruses, which occurs either on the external surface of the eye or intraocularly with probable Inflammation, Visual Impairment, or Blindnes [..]

Infections with nematodes of the superfamily Filarioidea. The presence of living worms in the body is mainly asymptomatic but the Death of Adult worms leads to granulomatous Inflammation and permanent [..]

Infections with Viruses of the Family Filoviridae. The Infections in Humans consist of a variety of clinically similar Viral Hemorrhagic Fevers but the natural reservoir host is unknown.

Infections with Viruses of the Family Flaviviridae.

Infections with Viruses of the genus Flavivirus, Family Flaviviridae.

Infections with Bacteria of the Family Flavobacteriaceae.

Infections with Bacteria of the Family Cytophagaceae.

A Plague-like Disease of Rodents, transmissible to man. It is caused by Francisella tularensis and is characterized by Fever, Chills, Headache, Backache, and weakness.

Infection by a variety of Fungi, usually through four possible mechanisms: superficial Infection producing conjunctivitis, Keratitis, or lacrimal obstruction; extension of Infection from neighboring s [..]

Opportunistic Infections with the Soil Fungus Fusarium. Typically the Infection is limited to the Nail plate (Onychomycosis). The Infection can however become systemic especially in an Immunocompromis [..]

Infections with Bacteria of the Family Fusobacteriaceae, in the order Fusobacterales, phylum Fusobacteria.

Infections with Bacteria of the genus Fusobacterium.

Infections of the genital tract in females or males. They can be caused by endogenous, iatrogenic, or sexually transmitted organisms.

Infections with nematodes of the genus Gnathostoma, superfamily Thelazioidea. Gnathostomiasis is a Food-borne zoonosis caused by Eating undercooked or raw fish or Meat.

Infections caused by Bacteria that show up as pink (negative) when treated by the gram-Staining method.

Infections caused by Bacteria that retain the Crystal Violet stain (positive) when treated by the gram-Staining method.

Infection with nematodes of the genus Dracunculus. One or more worms may be seen at a Time, with the Legs and Feet being the most commonly infected areas. Symptoms include Pruritus, Nausea, Vomiting, [..]

Infections with organisms of the genus Helicobacter, particularly, in Humans, Helicobacter pylori. The clinical manifestations are focused in the Stomach, usually the Gastric Mucosa and antrum, and th [..]

Infections with Bacteria of the genus Haemophilus.

Infections with Viruses of the genus Henipavirus, Family Paramyxoviridae.

Virus Diseases caused by the Hepadnaviridae.

Virus Diseases caused by the Herpesviridae.

Opportunistic Infections found in Patients who test positive for Human Immunodeficiency Virus (HIV). The most common include Pneumocystis Pneumonia, Kaposi's Sarcoma, Cryptosporidiosis, Herpes Si [..]

Infection of Humans or Animals with Hookworms other than those caused by the genus Ancylostoma or Necator, for which the specific terms Ancylostomiasis and Necatoriasis are available.

Includes the spectrum of Human Immunodeficiency Virus Infections that range from asymptomatic seropositivity, thru AIDS-Related Complex (ARC), to Acquired Immunodeficiency Syndrome (AIDS).

Respiratory and conjunctival Infections caused by 33 identified serotypes of Human Adenoviruses.

Infection with Tapeworms of the genus Hymenolepis.

Infection within the Peritoneal Cavity. A frequent cause is an Anastomotic Leak following Surgery.

Infections with Bacteria of the genus Klebsiella.

Accidentally acquired Infection in Laboratory workers.

The dormant form of Tuberculosis where the Person shows no obvious symptoms and no sign of the causative agent (Mycobacterium tuberculosis) in the Sputum despite being positive for Tuberculosis Infect [..]

An acute, sometimes fatal, Pneumonia-like Bacterial Infection characterized by high Fever, malaise, Muscle aches, respiratory disorders and Headache. It is named for an outbreak at the 1976 Philadelph [..]

Virus Diseases caused by the Lentivirus genus. They are multi-organ Diseases characterized by long incubation periods and persistent Infection.

Infections with Bacteria of the genus Listeria.

Infections with Bacteria of the species Neisseria meningitidis.

Infections by Mesomycetozoea, general or unspecified.

Infections with Fungi of the phylum Microsporidia.

Infections with Bacteria of the genus Acinetobacter.

Simultaneous Infection of a host organism by two or more pathogens. In Virology, coInfection commonly refers to simultaneous Infection of a single Cell by two or more different Viruses.

Infections with Viruses of the order Mononegavirales. The concept includes Filoviridae Infections; Paramyxoviridae Infections; and Rhabdoviridae Infections.

Infections with Bacteria of the Family Moraxellaceae.

Infections with Viruses of the genus Morbillivirus, Family Paramyxoviridae. Infections mainly cause Acute Disease in their hosts, although in some cases Infection is persistent and leads to degenerati [..]

Infections with Bacteria of the genus Mycobacterium.

A nontuberculous Infection when occurring in Humans. It is characterized by Pulmonary Disease, Lymphadenitis in Children, and systemic Disease in AIDS Patients. Mycobacterium avium-intracellulare Infe [..]

A lesion in the Skin and Subcutaneous Tissues due to Infections by Mycobacterium ulcerans. It was first reported in Uganda, Africa.

Infections with species of the genus Mycoplasma.

Infections with Bacteria of the order Mycoplasmatales.

Infections with Bacteria of the Family Neisseriaceae.

Infections by nematodes, general or unspecified.

Infections with Bacteria of the genus Nocardia.

Infections with Nontuberculous Mycobacteria (Atypical Mycobacteria): M. kansasii, M. marinum, M. scrofulaceum, M. flavescens, M. gordonae, M. obuense, M. gilvum, M. duvali, M. szulgai, M. intracellula [..]

Invasion and growth of an infectious microorganism, such as a bacterium or virus, in the body. Infection can also refer to the disease caused by the infectious microorganism. For example, HIV infection is caused by the human immunodeficiency virus (HIV).

Invasion and multiplication of microorganisms in body tissues, which may be clinically inapparent or result in local cellular injury. A local infection may persist and spread by extension to become an [..]

A disorder that occurs when microorganisms invade the body and multiply. Infectious microorganisms include bacteria, viruses, fungi, and parasites.

the entry and development or multiplication of an infectious agent in the body of humans or animals.

when a microorganism or virus enters the body and starts reproducing itself; if the harmful agent is not stopped, disease results.

The growth of any microorganism in wort or beer, except for the the brewer’s yeast that was deliberately added. Most infections harm the flavor of the finished product.

The presence of undesired or foreign micro-organisms in a culture medium or system.

Invasion and multiplication of germs in the body. Infections can occur in any part of the body and can spread throughout the body. The germs may be bacteria, viruses, yeast, or fungi. They can cause a fever and other problems, depending on where the infection occurs. When the body’s natural defense system is strong, it can often fight the germs and [..]

An infection occurs when bacteria or viruses invade the body. If the body cannot fight the infection, it may cause an illness.

[in-fek-shun] The invasion of the body by a pathogen such as a bacterium, fungus, or virus.

is the growth of a parasitic organism within the body. (A parasitic organism is one that lives on or in another organism and draws its nourishment therefrom.) A person with an infection has another organism (a "germ") growing within him, drawing its nourishment from the person.

The growth of a parasitic organism within the body. (A parasitic organism is one that lives on or in another organism and draws its nourishment from it.) A person with an infection has another organism (a “germ”) growing within him or her, drawing its nourishment from the person.

the entry of an organism or virus into a host and the establishment of a permanent or temporary parasitic relationship. The establishment of a parasite within a host plant. The presence of a parasite [..]

an inapparent infection that is chronic and in which a certain host-parasite relationship is established.

habitation of germs within a part of the body. Infection is usually synonymous with disease, but not always. For example, a person can be infected with poliovirus, but may not develop any symptoms of disease.

The entry and development of an infectious agent in the body of a person or animal.

The invasion by and replication of foreign organisms (bacteria, viruses, parasites) and the body’s response to that invasion.

Introduction of presence of pathogenic organisms in potable water supply.

invasion of the body by pathogenic microorganisms, and the reaction of tissues.

The name given to a situation in which a micro-organism such as a bacteria

 Bacteria, viruses, parasites or fungi (germs) that don’t normally live in the body invade your body and can make you ill. If your immune system is not working well, infections can come from the bacteria that normally live on your body, eg on your skin or in your bowel 

General term for invasion and growth of microorganisms in bodily tissues. (Definition from: CRISP Thesaurus via Unified Medical Language System

The entry and development or multiplication of an infectious a biological agent (including virus, bacterium, protist, and helminth) in a host. Infection may or may not lead to disease symptoms (e.g. d [..]

When germs enter a person's body and multiply, causing illness, organ and tissue damage, or disease. The germs may be bacteria, viruses, yeast, or fungi. They can cause a fever and other problems [..]

Invasion of the body by microorganisms.

Introduction of presence of pathogenic organisms in potable water supply. This is determined in two ways:

The entry and multiplication of an infectious agent in the tissues of the host. Asymptomatic or sub-clinical infection is an infectious process running a course similar to that of clinical disease but below the threshold of clinical symptoms. Symptomatic or clinical infection is one resulting in clinical signs and symptoms (disease).

Process by which pathogens penetrate into the body of an organism and multiply. We can distinguish them into smear infections, contact infections and droplet infections. 

A condition in which pathogens have entered the body and produced an adverse reaction.

The condition reached when a pathogen has invaded plant tissue and established a parasitic relationship between itself and its host.

Introduction of presence of pathogenic organisms in potable water supply. This is determined in two ways:

Invasion of tissues by microorganisms or viruses with or without the production of disease.

A condition that occurs when a foreign substance, such as bacteria, enters your body, causing your immune system to fight the intruder. All transplant recipients can get infections more easily because [..]

Invasion of the body by a disease-causing agent.

(pathology) The act or process of infecting. An uncontrolled growth of harmful microorganisms in a host. *fro|infection, fromla|*infecti?.

  Invasion of any system of your body by organisms that do not belong there, such as certain bacteria, viruses and fungi.  Infection by these organisms may result in activation of your immune system and cause symptoms such as fever and fatigue.  Many symptoms of infection are specific to the area of your body that is affected.