Haemophilus Meningitis
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  Haemophilus Meningitis



Haemophilus Meningitis

   BACTERIAL INFECTIONS of the nervous system caused by HAEMOPHILUS organisms, and marked by prominent inflammation of the meninges. HAEMOPHILUS INFLUENZAE TYPE B is the most common causative organism. The condition primarily affects children under 6 years of age but may occur in adults. Clinical manifestations include fever; nuchal rigidity; PHOTOPHOBIA; SEIZURES; HEARING LOSS; SENSORINEURONAL; COMA; and cerebrovascular thrombosis. The organism tends to enter the central nervous system following infections of adjacent structures, including the middle ear (see also OTITIS MEDIA), sinuses, and pharynx. (From Menkes, Textbook of Child Neurology, 5th ed, pp396-7)

RELATED TERMS
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BACTERIAL
Of or pertaining to bacteria. For example, a bacterial lung infection.

HAEMOPHILUS
A genus of PASTEURELLACEAE that consists of several species occurring in animals and humans. Its organisms are described as gram-negative, facultatively anaerobic, coccobacillus or rod-shaped, and nonmotile.

Inflammation
A reaction to an injury to the body - by infection, chemicals or physical agents. The symptoms can be - depending on the location of the injury- redness, swelling, heat and pain. The purpose of the inflammation is to dilute and destroy the agent causing the inflammation. To do this, the immune system starts a cascade of actions that causes active cells to gather at the affected location. It is these cells and fluids that cause the redness, swelling, heat and pain.

Meninges
Membranes which surround and protect the brain and spinal cord; anatomically there are 3 meninges: the pia mater, which adheres to the brain and the spinal cord, the dura mater, which adheres to the bone and the arachnoid between these two membranes.

Organism
A living thing, such as an animal, a plant, a bacterium, or a fungus.

Condition
The term "condition" has a number of biomedical meanings including the following: 1.An unhealthy state, such as in "this is a progressive condition." 2.A state of fitness, such as "getting into condition." 3.Something that is essential to the occurrence of something else; essentially a "precondition." 4.As a verb: to cause a change in something so that a response that was previously associated with a certain stimulus becomes associated with another stimulus; to condition a person, as in behavioral conditioning.

Affects
The feeling-tone accompaniment of an idea or mental representation. It is the most direct psychic derivative of instinct and the psychic representative of the various bodily changes by means of which instincts manifest themselves.

Clinical
That which can be observed in patients. Research that uses patients to test new treatments, as opposed to laboratory testing or research in animals.

Fever
When body temperature rises above its normal level - defined as 98.6 degrees F, though it varies by individual and time of day. A fever is the sign of an immune system at work and usually indicates an infection.

Rigidity
Rigidity is an increased resistance to the passive movement of a limb.

PHOTOPHOBIA
Severe discomfort to bright lights. Usually a symptom of eye disease, such as glaucoma, in an infant or retinal disease in a child or adult. Sometimes treated with dark sunglasses.

HEARING
The sensation of sound.

COMA
A sleep-like state; not conscious. May be due to a high or low level of glucose (sugar) in the blood.

Cerebrovascular
Pertaining to blood vessels in the brain.

Thrombosis
A blood clot formed in the blood vessel or in the heart.

Central
In anatomy and medicine (as elsewhere), central is the opposite of "peripheral" which means away from the center.

Adjacent
Lying nearby. Related terms include superjacent, subjacent, and circumjacent. From ad-, near + the Latin jacere, to lie = to lie near.

Pharynx
Space behind the mouth that serves as a passage for food from the mouth to the esophagus and for air from the nose and mouth to the larynx.

Neurology
The branch of medicine that pertains to the nervous system.



SIMILAR TERMS
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Haem Oxygenase
A mixed function oxidase enzyme which during hemoglobin catabolism catalyzes the degradation of heme to ferrous iron, carbon monoxide and biliverdin in the presence of molecular oxygen and reduced NADPH. The enzyme is induced by metals, particularly cobalt. EC 1.14.99.3.

Haemaccel
A 3.5 per cent colloidal solution containing urea-cross-linked polymerized peptides. It has a molecular weight of approximately 35,000 and is prepared from gelatin and electrolytes. The polymeric solution is used as a plasma expander.

Haemachatus
A genus of poisonous snakes of the subfamily Elapinae of the family ELAPIDAE. There are six recognized species, all inhabiting Africa except the Asiatic (Indian) cobra, Naja naja. Some species ""spit"" their venom into the eyes of their ""enemies"". So-called spitting cobras show a high degree of accuracy in aiming for the eyes. The ringhals, the most highly specialized of the spitting cobras, is limited to southern Africa. Its spray destroys eye tissue and can cause blindness; its bite can cause death. (Moore: Poisonous Snakes of the World, 1980, p80)

Haematobia irritans
A family of the order DIPTERA with over 700 species. Important species that may be mechanical vectors of disease include Musca domesticus (HOUSEFLIES), Musca autumnalis (face fly), Stomoxys calcitrans (stable fly), Haematobia irritans (horn fly) and Fannia spp.

Haematopinus
An order of insects comprising the sucking lice, which are blood-sucking ectoparasites of mammals. Recognized families include: Echionphthiriidae, Haematopinidae, and Pediculidae. The latter contains the medically important genera affecting humans: PEDICULUS and PHTHIRUS.

Haematoporphyrin IX
Iron-free derivatives of heme with 4 methyl groups, 2 hydroxyethyl groups and 2 propionic acid groups attached to the pyrrole rings. Some of these PHOTOSENSITIZING AGENTS are used in the PHOTOTHERAPY of malignant NEOPLASMS.

Haematoxylon
A dye obtained from the heartwood of logwood (Haematoxylon campechianum Linn., Leguminosae) used as a stain in microscopy and in the manufacture of ink.

HaEmek Medical Center
The HaEmek Medical Center is a hospital in Afula, Israel.

Haemobartonella
A family of bacteria which inhabit red blood cells and cause several animal diseases.

Haemobartonelloses
Infections with bacteria of the family ANAPLASMATACEAE.

Haemobartonellosis
Infections with bacteria of the family ANAPLASMATACEAE.

Haemonchiases
Infection with nematodes of the genus HAEMONCHUS, characterized by digestive abnormalities and anemia similar to that from hookworm infestation.

Haemonchiasis
Infection with nematodes of the genus HAEMONCHUS, characterized by digestive abnormalities and anemia similar to that from hookworm infestation.

Haemonchus
A genus of parasitic nematode worms which infest the duodenum and stomach of domestic and wild herbivores, which ingest it with the grasses (POACEAE) they eat. Infestation of man is accidental.

Haemophilus
A genus of PASTEURELLACEAE that consists of several species occurring in animals and humans. Its organisms are described as gram-negative, facultatively anaerobic, coccobacillus or rod-shaped, and nonmotile.

Haemophilus aphrophilus Meningitides
BACTERIAL INFECTIONS of the nervous system caused by HAEMOPHILUS organisms, and marked by prominent inflammation of the meninges. HAEMOPHILUS INFLUENZAE TYPE B is the most common causative organism. The condition primarily affects children under 6 years of age but may occur in adults. Clinical manifestations include fever; nuchal rigidity; PHOTOPHOBIA; SEIZURES; HEARING LOSS; SENSORINEURONAL; COMA; and cerebrovascular thrombosis. The organism tends to enter the central nervous system following infections of adjacent structures, including the middle ear (see also OTITIS MEDIA), sinuses, and pharynx. (From Menkes, Textbook of Child Neurology, 5th ed, pp396-7)

Haemophilus aphrophilus Meningitis
BACTERIAL INFECTIONS of the nervous system caused by HAEMOPHILUS organisms, and marked by prominent inflammation of the meninges. HAEMOPHILUS INFLUENZAE TYPE B is the most common causative organism. The condition primarily affects children under 6 years of age but may occur in adults. Clinical manifestations include fever; nuchal rigidity; PHOTOPHOBIA; SEIZURES; HEARING LOSS; SENSORINEURONAL; COMA; and cerebrovascular thrombosis. The organism tends to enter the central nervous system following infections of adjacent structures, including the middle ear (see also OTITIS MEDIA), sinuses, and pharynx. (From Menkes, Textbook of Child Neurology, 5th ed, pp396-7)

Haemophilus ducreyi
A species of HAEMOPHILUS that appears to be the pathogen or causative agent of the sexually transmitted disease, CHANCROID.

Haemophilus Infection
Infections with bacteria of the genus HAEMOPHILUS.

Haemophilus Infections
Infections with bacteria of the genus HAEMOPHILUS.

Haemophilus influenzae
A species of HAEMOPHILUS found on the mucous membranes of humans and a variety of animals. The species is further divided into biotypes I through VIII.

Haemophilus influenzae Meningitis Type B
BACTERIAL INFECTIONS of the nervous system caused by HAEMOPHILUS organisms, and marked by prominent inflammation of the meninges. HAEMOPHILUS INFLUENZAE TYPE B is the most common causative organism. The condition primarily affects children under 6 years of age but may occur in adults. Clinical manifestations include fever; nuchal rigidity; PHOTOPHOBIA; SEIZURES; HEARING LOSS; SENSORINEURONAL; COMA; and cerebrovascular thrombosis. The organism tends to enter the central nervous system following infections of adjacent structures, including the middle ear (see also OTITIS MEDIA), sinuses, and pharynx. (From Menkes, Textbook of Child Neurology, 5th ed, pp396-7)

Haemophilus influenzae type b
A type of H. influenzae isolated most frequently from biotype I. Prior to vaccine availability, it was a leading cause of childhood meningitis.

Haemophilus influenzae Vaccines
Vaccines or candidate vaccines containing antigenic polysaccharides from Haemophilus influenzae and designed to prevent infection. The vaccine can contain the polysaccharides alone or more frequently polysaccharides conjugated to carrier molecules. It is also seen as a combined vaccine with diphtheria-tetanus-pertussis vaccine.

Haemophilus Meningitides
BACTERIAL INFECTIONS of the nervous system caused by HAEMOPHILUS organisms, and marked by prominent inflammation of the meninges. HAEMOPHILUS INFLUENZAE TYPE B is the most common causative organism. The condition primarily affects children under 6 years of age but may occur in adults. Clinical manifestations include fever; nuchal rigidity; PHOTOPHOBIA; SEIZURES; HEARING LOSS; SENSORINEURONAL; COMA; and cerebrovascular thrombosis. The organism tends to enter the central nervous system following infections of adjacent structures, including the middle ear (see also OTITIS MEDIA), sinuses, and pharynx. (From Menkes, Textbook of Child Neurology, 5th ed, pp396-7)

Haemophilus parainfluenzae Meningitides
BACTERIAL INFECTIONS of the nervous system caused by HAEMOPHILUS organisms, and marked by prominent inflammation of the meninges. HAEMOPHILUS INFLUENZAE TYPE B is the most common causative organism. The condition primarily affects children under 6 years of age but may occur in adults. Clinical manifestations include fever; nuchal rigidity; PHOTOPHOBIA; SEIZURES; HEARING LOSS; SENSORINEURONAL; COMA; and cerebrovascular thrombosis. The organism tends to enter the central nervous system following infections of adjacent structures, including the middle ear (see also OTITIS MEDIA), sinuses, and pharynx. (From Menkes, Textbook of Child Neurology, 5th ed, pp396-7)

Haemophilus parainfluenzae Meningitis
BACTERIAL INFECTIONS of the nervous system caused by HAEMOPHILUS organisms, and marked by prominent inflammation of the meninges. HAEMOPHILUS INFLUENZAE TYPE B is the most common causative organism. The condition primarily affects children under 6 years of age but may occur in adults. Clinical manifestations include fever; nuchal rigidity; PHOTOPHOBIA; SEIZURES; HEARING LOSS; SENSORINEURONAL; COMA; and cerebrovascular thrombosis. The organism tends to enter the central nervous system following infections of adjacent structures, including the middle ear (see also OTITIS MEDIA), sinuses, and pharynx. (From Menkes, Textbook of Child Neurology, 5th ed, pp396-7)

Haemophilus pertussis
A species of gram-negative, aerobic bacteria that is the causative agent of WHOOPING COUGH. Its cells are minute coccobacilli that are surrounded by a slime sheath.

Haemophilus pleuropneumoniae
A species of gram-negative, facultatively anaerobic coccobacillus-shaped bacteria that has been isolated from pneumonic lesions and blood. It produces pneumonia with accompanying fibrinous pleuritis in swine.

Haemophilus Vaccine
Vaccines or candidate vaccines containing antigenic polysaccharides from Haemophilus influenzae and designed to prevent infection. The vaccine can contain the polysaccharides alone or more frequently polysaccharides conjugated to carrier molecules. It is also seen as a combined vaccine with diphtheria-tetanus-pertussis vaccine.

Haemophilus Vaccines
Vaccines or candidate vaccines containing antigenic polysaccharides from Haemophilus influenzae and designed to prevent infection. The vaccine can contain the polysaccharides alone or more frequently polysaccharides conjugated to carrier molecules. It is also seen as a combined vaccine with diphtheria-tetanus-pertussis vaccine.

Haemophilus vaginalis
The only species in the genus GARDNERELLA, and previously classed as Haemophilus vaginalis. This bacterium, also isolated from the female genital tract of healthy women, is implicated in the cause of bacterial vaginosis (VAGINOSIS, BACTERIAL). It occasionally causes postpartum bacteremia and bacteremia following a transurethral resection of the prostate.

Haemorrhagic Adrenalitis, Meningococcal
A condition characterized by the abrupt onset of fever, petechiae, ARTHRALGIA, weakness, and myalgias followed by acute hemorrhagic necrosis of the adrenal glands and severe cardiovascular dysfunction. The syndrome is most often associated with meningococcal septicemia but may occur as a complication of sepsis caused by other organisms, including certain STREPTOCOCCUS species. This disorder may be associated with a prior history of SPLENECTOMY. (From J Emerg Med 1998 Jul-Aug;16(4):643-7)

Haemorrhagic stroke
A stroke caused by intracerebral haemorrhage, or bleeding from a blood vessel within the brain. See also aneurysm.

Haemosporida
An order of heteroxenous protozoa in which the macrogamete and microgamont develop independently. A conoid is usually absent.

Haemosporina
An order of heteroxenous protozoa in which the macrogamete and microgamont develop independently. A conoid is usually absent.



PREVIOUS AND NEXT TERMS
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Haemophilus Vaccine
Vaccines or candidate vaccines containing antigenic polysaccharides from Haemophilus influenzae and designed to prevent infection. The vaccine can contain the polysaccharides alone or more frequently polysaccharides conjugated to carrier molecules. It is also seen as a combined vaccine with diphtheria-tetanus-pertussis vaccine.

Haemophilus pleuropneumoniae
A species of gram-negative, facultatively anaerobic coccobacillus-shaped bacteria that has been isolated from pneumonic lesions and blood. It produces pneumonia with accompanying fibrinous pleuritis in swine.

Haemophilus pertussis
A species of gram-negative, aerobic bacteria that is the causative agent of WHOOPING COUGH. Its cells are minute coccobacilli that are surrounded by a slime sheath.

Haemophilus parainfluenzae Meningitis
BACTERIAL INFECTIONS of the nervous system caused by HAEMOPHILUS organisms, and marked by prominent inflammation of the meninges. HAEMOPHILUS INFLUENZAE TYPE B is the most common causative organism. The condition primarily affects children under 6 years of age but may occur in adults. Clinical manifestations include fever; nuchal rigidity; PHOTOPHOBIA; SEIZURES; HEARING LOSS; SENSORINEURONAL; COMA; and cerebrovascular thrombosis. The organism tends to enter the central nervous system following infections of adjacent structures, including the middle ear (see also OTITIS MEDIA), sinuses, and pharynx. (From Menkes, Textbook of Child Neurology, 5th ed, pp396-7)

Haemophilus parainfluenzae Meningitides
BACTERIAL INFECTIONS of the nervous system caused by HAEMOPHILUS organisms, and marked by prominent inflammation of the meninges. HAEMOPHILUS INFLUENZAE TYPE B is the most common causative organism. The condition primarily affects children under 6 years of age but may occur in adults. Clinical manifestations include fever; nuchal rigidity; PHOTOPHOBIA; SEIZURES; HEARING LOSS; SENSORINEURONAL; COMA; and cerebrovascular thrombosis. The organism tends to enter the central nervous system following infections of adjacent structures, including the middle ear (see also OTITIS MEDIA), sinuses, and pharynx. (From Menkes, Textbook of Child Neurology, 5th ed, pp396-7)

Haemophilus Meningitis

Haemophilus Meningitides
BACTERIAL INFECTIONS of the nervous system caused by HAEMOPHILUS organisms, and marked by prominent inflammation of the meninges. HAEMOPHILUS INFLUENZAE TYPE B is the most common causative organism. The condition primarily affects children under 6 years of age but may occur in adults. Clinical manifestations include fever; nuchal rigidity; PHOTOPHOBIA; SEIZURES; HEARING LOSS; SENSORINEURONAL; COMA; and cerebrovascular thrombosis. The organism tends to enter the central nervous system following infections of adjacent structures, including the middle ear (see also OTITIS MEDIA), sinuses, and pharynx. (From Menkes, Textbook of Child Neurology, 5th ed, pp396-7)

Hair Cell, Outer
Mechanoreceptors in the organ of Corti. In mammals the outer hair cells are arranged in three rows which are further from the modiolus than the single row of inner hair cells. The motile properties of the outer hair cells may contribute actively to tuning the sensitivity and frequency selectivity of the cochlea.

Hair Cell, Inner
Bulbous cells that are medially placed in one row in the organ of Corti. In contrast to the outer hair cells, the inner hair cells are fewer in number, have fewer sensory hairs, and are less differentiated.

Hair Cell
Mechanoreceptors located in the organ of Corti that are sensitive to auditory stimuli and in the vestibular apparatus that are sensitive to movement of the head. In each case the accessory sensory structures are arranged so that appropriate stimuli cause movement of the hair-like projections (stereocilia and kinocilia) which relay the information centrally in the nervous system.

Hair Cells, Inner
Bulbous cells that are medially placed in one row in the organ of Corti. In contrast to the outer hair cells, the inner hair cells are fewer in number, have fewer sensory hairs, and are less differentiated.

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