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Subclinical infection

Index Subclinical infection

A subclinical infection (sometimes called a preinfection) is an infection that, being subclinical, is nearly or completely asymptomatic (no signs or symptoms). [1]

76 relations: Asymptomatic, Asymptomatic carrier, Bacterial pneumonia, Bordetella pertussis, Chlamydia infection, Chlamydia trachomatis, Chlamydophila pneumoniae, Clostridium difficile (bacteria), Common cold, Cyclospora cayetanensis, Dengue virus, Deployment cost–benefit selection in physiology, Dientamoeba fragilis, Disease, Entamoeba histolytica, Enterotoxigenic Escherichia coli, Epidemiology, Epstein–Barr virus, Evolutionary medicine, Fever, Genital herpes, Genital wart, Gonorrhea, Group A streptococcal infection, Helicobacter pylori, Herpes simplex, Herpetic gingivostomatitis, HIV/AIDS, Host (biology), Incubation period, Infection, Intestinal parasite infection, Latent tuberculosis, Legionella pneumophila, Legionnaires' disease, Leprosy, Malaria, Mathematical modelling of infectious disease, Measles, Medical sign, Meningitis, Microbiological culture, Microorganism, Mycobacterium leprae, Mycobacterium tuberculosis, Natural reservoir, Neisseria gonorrhoeae, Neisseria meningitidis, Norovirus, Pathogen, ..., Pharmacotherapy, Plasmodium, Poliomyelitis, Poliovirus, Polymerase chain reaction, Pregnancy, Preterm birth, Prevalence, Rhinovirus, Salmonella, Salmonella enterica subsp. enterica, Sexually transmitted infection, Sickness behavior, Staphylococcus aureus, Statistical population, Streptococcus pneumoniae, Subtypes of HIV, Symptom, Syphilis, Transmission (medicine), Treponema pallidum, Tuberculosis, Typhoid fever, Urinary tract infection, Virus, Whooping cough. Expand index (26 more) »

Asymptomatic

In medicine, a disease is considered asymptomatic if a patient is a carrier for a disease or infection but experiences no symptoms.

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Asymptomatic carrier

An asymptomatic carrier (healthy carrier or just carrier) is a person or other organism that has become infected with a pathogen, but who display no signs nor symptoms.

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Bacterial pneumonia

Bacterial pneumonia is a type of pneumonia caused by bacterial infection.

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Bordetella pertussis

Bordetella pertussis is a Gram-negative, aerobic, pathogenic, encapsulated coccobacillus of the genus Bordetella, and the causative agent of pertussis or whooping cough.

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Chlamydia infection

Chlamydia infection, often simply known as chlamydia, is a sexually transmitted infection caused by the bacterium Chlamydia trachomatis.

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Chlamydia trachomatis

Chlamydia trachomatis, commonly known as chlamydia, is one of four bacterial species in the genus Chlamydia.

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Chlamydophila pneumoniae

Chlamydophila pneumoniae is a species of Chlamydophila, an obligate intracellular bacterium that infects humans and is a major cause of pneumonia.

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Clostridium difficile (bacteria)

Clostridium difficile (etymology and pronunciation), also known as C. difficile, C. diff, or sometimes CDF/cdf, is a species of Gram-positive spore-forming bacterium.

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Common cold

The common cold, also known simply as a cold, is a viral infectious disease of the upper respiratory tract that primarily affects the nose.

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Cyclospora cayetanensis

Cyclospora cayetanensis is a protozoan that causes disease in humans, and perhaps primates.

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Dengue virus

Dengue virus (DENV) is the cause of dengue fever.

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Deployment cost–benefit selection in physiology

Deployment cost–benefit selection in physiology concerns the costs and benefits of physiological process that can be deployed and selected in regard to whether they will increase or not an animal’s survival and biological fitness.

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Dientamoeba fragilis

Dientamoeba fragilis is a species of single-celled excavates found in the gastrointestinal tract of some humans, pigs and gorillas.

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Disease

A disease is any condition which results in the disorder of a structure or function in an organism that is not due to any external injury.

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Entamoeba histolytica

Entamoeba histolytica is an anaerobic parasitic amoebozoan, part of the genus Entamoeba.

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Enterotoxigenic Escherichia coli

Enterotoxigenic Escherichia coli (ETEC) is a type of Escherichia coli and one of the leading bacterial causes of diarrhea in the developing world, as well as the most common cause of travelers' diarrhea.

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Epidemiology

Epidemiology is the study and analysis of the distribution (who, when, and where) and determinants of health and disease conditions in defined populations.

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Epstein–Barr virus

The Epstein–Barr virus (EBV), also called human herpesvirus 4 (HHV-4), is one of eight known human herpesvirus types in the herpes family, and is one of the most common viruses in humans.

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Evolutionary medicine

Evolutionary medicine or Darwinian medicine is the application of modern evolutionary theory to understanding health and disease.

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Fever

Fever, also known as pyrexia and febrile response, is defined as having a temperature above the normal range due to an increase in the body's temperature set-point.

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Genital herpes

Genital herpes is an infection by herpes simplex virus (HSV) of the genitals.

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Genital wart

Genital warts are a sexually transmitted infection caused by certain types of human papillomavirus (HPV).

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Gonorrhea

Gonorrhea, also spelled gonorrhoea, is a sexually transmitted infection (STI) caused by the bacterium Neisseria gonorrhoeae.

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Group A streptococcal infection

A group A streptococcal infection is an infection with group A streptococcus (GAS).

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Helicobacter pylori

Helicobacter pylori, previously known as Campylobacter pylori, is a gram-negative, microaerophilic bacterium usually found in the stomach.

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Herpes simplex

Herpes simplex is a viral disease caused by the herpes simplex virus.

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Herpetic gingivostomatitis

Gingivostomatitis (also known as primary herpetic gingivostomatitis or orolabial herpes) is a combination of gingivitis and stomatitis, or an inflammation of the oral mucosa and gingiva.

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HIV/AIDS

Human immunodeficiency virus infection and acquired immune deficiency syndrome (HIV/AIDS) is a spectrum of conditions caused by infection with the human immunodeficiency virus (HIV).

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Host (biology)

In biology and medicine, a host is an organism that harbours a parasitic, a mutualistic, or a commensalist guest (symbiont), the guest typically being provided with nourishment and shelter.

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Incubation period

Incubation period is the time elapsed between exposure to a pathogenic organism, a chemical, or radiation, and when symptoms and signs are first apparent.

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Infection

Infection is the invasion of an organism's body tissues by disease-causing agents, their multiplication, and the reaction of host tissues to the infectious agents and the toxins they produce.

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Intestinal parasite infection

An intestinal parasite infection is a condition in which a parasite infects the gastro-intestinal tract of humans and other animals.

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Latent tuberculosis

A diagnosis of latent tuberculosis (LTB), also called latent tuberculosis infection (LTBI) means a patient is infected with Mycobacterium tuberculosis, but the patient does not have active tuberculosis.

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Legionella pneumophila

Legionella pneumophila is a thin, aerobic, pleomorphic, flagellated, nonspore-forming, Gram-negative bacterium of the genus Legionella.

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Legionnaires' disease

Legionnaires' disease is a form of atypical pneumonia caused by any type of Legionella bacteria.

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Leprosy

Leprosy, also known as Hansen's disease (HD), is a long-term infection by the bacterium Mycobacterium leprae or Mycobacterium lepromatosis.

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Malaria

Malaria is a mosquito-borne infectious disease affecting humans and other animals caused by parasitic protozoans (a group of single-celled microorganisms) belonging to the Plasmodium type.

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Mathematical modelling of infectious disease

Mathematical models can project how infectious diseases progress to show the likely outcome of an epidemic and help inform public health interventions.

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Measles

Measles is a highly contagious infectious disease caused by the measles virus.

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Medical sign

A medical sign is an objective indication of some medical fact or characteristic that may be detected by a patient or anyone, especially a physician, before or during a physical examination of a patient.

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Meningitis

Meningitis is an acute inflammation of the protective membranes covering the brain and spinal cord, known collectively as the meninges.

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Microbiological culture

A microbiological culture, or microbial culture, is a method of multiplying microbial organisms by letting them reproduce in predetermined culture medium under controlled laboratory conditions.

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Microorganism

A microorganism, or microbe, is a microscopic organism, which may exist in its single-celled form or in a colony of cells. The possible existence of unseen microbial life was suspected from ancient times, such as in Jain scriptures from 6th century BC India and the 1st century BC book On Agriculture by Marcus Terentius Varro. Microbiology, the scientific study of microorganisms, began with their observation under the microscope in the 1670s by Antonie van Leeuwenhoek. In the 1850s, Louis Pasteur found that microorganisms caused food spoilage, debunking the theory of spontaneous generation. In the 1880s Robert Koch discovered that microorganisms caused the diseases tuberculosis, cholera and anthrax. Microorganisms include all unicellular organisms and so are extremely diverse. Of the three domains of life identified by Carl Woese, all of the Archaea and Bacteria are microorganisms. These were previously grouped together in the two domain system as Prokaryotes, the other being the eukaryotes. The third domain Eukaryota includes all multicellular organisms and many unicellular protists and protozoans. Some protists are related to animals and some to green plants. Many of the multicellular organisms are microscopic, namely micro-animals, some fungi and some algae, but these are not discussed here. They live in almost every habitat from the poles to the equator, deserts, geysers, rocks and the deep sea. Some are adapted to extremes such as very hot or very cold conditions, others to high pressure and a few such as Deinococcus radiodurans to high radiation environments. Microorganisms also make up the microbiota found in and on all multicellular organisms. A December 2017 report stated that 3.45 billion year old Australian rocks once contained microorganisms, the earliest direct evidence of life on Earth. Microbes are important in human culture and health in many ways, serving to ferment foods, treat sewage, produce fuel, enzymes and other bioactive compounds. They are essential tools in biology as model organisms and have been put to use in biological warfare and bioterrorism. They are a vital component of fertile soils. In the human body microorganisms make up the human microbiota including the essential gut flora. They are the pathogens responsible for many infectious diseases and as such are the target of hygiene measures.

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Mycobacterium leprae

Mycobacterium leprae, also known as Hansen’s bacillus spirilly, mostly found in warm tropical countries, is a bacterium that causes leprosy (Hansen's disease).

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Mycobacterium tuberculosis

Mycobacterium tuberculosis is a species of pathogenic bacteria in the family Mycobacteriaceae and the causative agent of tuberculosis.

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Natural reservoir

In infectious disease ecology and epidemiology, a natural reservoir, also known as a disease reservoir or a reservoir of infection, is the population of organisms or the specific environment in which an infectious pathogen naturally lives and reproduces, or upon which the pathogen primarily depends for its survival.

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Neisseria gonorrhoeae

Neisseria gonorrhoeae, also known as gonococcus (singular), or gonococci (plural) is a species of gram-negative diplococci bacteria isolated by Albert Neisser in 1879.

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Neisseria meningitidis

Neisseria meningitidis, often referred to as meningococcus, is a Gram-negative bacterium that can cause meningitis and other forms of meningococcal disease such as meningococcemia, a life-threatening sepsis.

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Norovirus

Norovirus, sometimes referred to as the winter vomiting bug, is the most common cause of gastroenteritis.

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Pathogen

In biology, a pathogen (πάθος pathos "suffering, passion" and -γενής -genēs "producer of") or a '''germ''' in the oldest and broadest sense is anything that can produce disease; the term came into use in the 1880s.

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Pharmacotherapy

Pharmacotherapy is therapy using pharmaceutical drugs, as distinguished from therapy using surgery (surgical therapy), radiation (radiation therapy), movement (physical therapy), or other modes.

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Plasmodium

Plasmodium is a genus of unicellular eukaryotes that are obligate parasites of vertebrates and insects.

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Poliomyelitis

Poliomyelitis, often called polio or infantile paralysis, is an infectious disease caused by the poliovirus.

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Poliovirus

Poliovirus, the causative agent of poliomyelitis (commonly known as polio), is a human enterovirus and member of the family of Picornaviridae.

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Polymerase chain reaction

Polymerase chain reaction (PCR) is a technique used in molecular biology to amplify a single copy or a few copies of a segment of DNA across several orders of magnitude, generating thousands to millions of copies of a particular DNA sequence.

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Pregnancy

Pregnancy, also known as gestation, is the time during which one or more offspring develops inside a woman.

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Preterm birth

Preterm birth, also known as premature birth, is the birth of a baby at fewer than 37 weeks gestational age.

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Prevalence

Prevalence in epidemiology is the proportion of a particular population found to be affected by a medical condition (typically a disease or a risk factor such as smoking or seat-belt use).

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Rhinovirus

The rhinovirus (from the Greek ῥίς rhis "nose", ῥινός rhinos "of the nose", and the Latin vīrus) is the most common viral infectious agent in humans and is the predominant cause of the common cold.

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Salmonella

Salmonella is a genus of rod-shaped (bacillus) Gram-negative bacteria of the family Enterobacteriaceae.

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Salmonella enterica subsp. enterica

Salmonella enterica subsp.

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Sexually transmitted infection

Sexually transmitted infections (STI), also referred to as sexually transmitted diseases (STD) or venereal diseases (VD), are infections that are commonly spread by sexual activity, especially vaginal intercourse, anal sex and oral sex.

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Sickness behavior

Ancher, Michael, "The Sick Girl", 1882, Statens Museum for Kunst. Sickness behavior is a coordinated set of adaptive behavioral changes that develop in ill individuals during the course of an infection.

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Staphylococcus aureus

Staphylococcus aureus is a Gram-positive, round-shaped bacterium that is a member of the Firmicutes, and it is a member of the normal flora of the body, frequently found in the nose, respiratory tract, and on the skin.

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Statistical population

In statistics, a population is a set of similar items or events which is of interest for some question or experiment.

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Streptococcus pneumoniae

Streptococcus pneumoniae, or pneumococcus, is a Gram-positive, alpha-hemolytic (under aerobic conditions) or beta-hemolytic (under anaerobic conditions), facultative anaerobic member of the genus Streptococcus.

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Subtypes of HIV

One of the obstacles to treatment of the human immunodeficiency virus is its high genetic variability.

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Symptom

A symptom (from Greek σύμπτωμα, "accident, misfortune, that which befalls", from συμπίπτω, "I befall", from συν- "together, with" and πίπτω, "I fall") is a departure from normal function or feeling which is noticed by a patient, reflecting the presence of an unusual state, or of a disease.

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Syphilis

Syphilis is a sexually transmitted infection caused by the bacterium Treponema pallidum subspecies pallidum.

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Transmission (medicine)

In medicine, public health, and biology, transmission is the passing of a pathogen causing communicable disease from an infected host individual or group to a particular individual or group, regardless of whether the other individual was previously infected.

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Treponema pallidum

Treponema pallidum is a spirochaete bacterium with subspecies that cause the diseases syphilis, bejel, and yaws.

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Tuberculosis

Tuberculosis (TB) is an infectious disease usually caused by the bacterium Mycobacterium tuberculosis (MTB).

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Typhoid fever

Typhoid fever, also known simply as typhoid, is a bacterial infection due to ''Salmonella'' typhi that causes symptoms.

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Urinary tract infection

A urinary tract infection (UTI) is an infection that affects part of the urinary tract.

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Virus

A virus is a small infectious agent that replicates only inside the living cells of other organisms.

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Whooping cough

Whooping cough (also known as pertussis or 100-day cough) is a highly contagious bacterial disease.

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Asymptomatic infection, Preinfection.

References

[1] https://en.wikipedia.org/wiki/Subclinical_infection

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