

|
There is no cure for herpes simplex. Once it is contracted, it is always in a person's system.
|
|
Encephalitis is irritation and swelling(inflammation) of the brain, usually due to infections.Encephalitis is most often caused by a viral infection. Many types of viruses may cause it.
|
|
Although the word meningitis suggests an inflammation of the meninges only, there is always some involvement of the most superficial parts of the brain that are contiguous to the meninges. Often there are also alterations in the flow of cerebrospinal fluid (CSF).
|
|
Encephalitis is an inflammation of the brain, usually caused by a direct viral infection or a hypersensitivity reaction to a virus or foreign protein. Brain inflammation caused by a bacterial infection is sometimes called cerebritis.
|
|
Encephalitis infects the brain tissue itself and has serious consequences.Among the many forms of encephalitis are those that occur seasonally, those that affect animals, and a form that is carried by a mosquito. Viruses that have been directly im...
|
|
|
Encephalitis is an inflammation of the brain, usually caused by a direct viral infection or a hypersensitivity reaction to a virus or foreign protein. Brain inflammation caused by a bacterial infection is sometimes called cerebritis.
|
![]() |
Pneumonia is an infection of the lungs. Many different organisms can cause it, including bacteria, viruses, and fungi.Pneumonia is a common illness that affects millions of people each year in the United States.Bacterial pneumonias tend to be the ...
|
|
The most common mechanism by which the lung is inoculated with pathogenic organisms is through microaspiration of oropharyngeal contents, a process that occurs in otherwise healthy individuals during sleep ( Chapter 82 ). Colonization of the oral pharynx with pathogenic organisms, such as Streptococcus pneumoniae ( Chapter 303 ), can thereby lead to delivery of sufficient quantities of organisms to infect the lung.
|
|
|
Pneumonia is an infection of the lung, and can be caused by nearly any class of organism known to cause human infections. These include bacteria, viruses, fungi, and parasites.
|
|
Introduction Pneumonia has been recognized as a disease entity since remote times, with definitions of the condition traceable in ancient Greek, Roman, and Arabic writings. Definitive recognition of the etiologic role of microorganisms in pneumonia, and the identification of Streptococcus pneumoniae as the most common causative agent was only achieved roughly 120 years ago.
|
|
The actual incidence of pneumonia in ambulatory patients is difficult to estimate because the etiologic agent is rarely identified except in clinical trials, and CAP is not currently considered a reportable disease. Each year in the United States there are 2 to 3 million cases of CAP.
|
|
The following Clinical Topic Tour provides an overview of pneumococcal pneumonia and was adapted by materials published by the National Institute of Allergy and Infectious Diseases and the CDC.
|
|
Pneumocystis pneumonia is a lung infection that occurs primarily in people with weakened immune systems—especially people who are HIV-positive. The disease agent is an organism whose biological classification is still uncertain.
|
|
|
Pneumonia is a serious infection of the lung that impairs breathing. Small air sacs in the lung(alveoli) become filled with pus, mucus or other fluid, and cannot supply oxygen to circulating blood.
|
|
Pneumococcal pneumonia is a common but serious infection and inflammation of the lungs. It is caused by the bacterium Streptococcus pneumoniae.The gram-positive, spherical bacteria, Streptococcus pneumoniae, is the cause of many human diseases, in...
|
|
Eosinophilic pneumonia is a group of diseases in which there is an above normal number of eosinophils in the lungs and blood.Eosinophilia is an increase in the number of eosinophils. Eosinophilic pneumonia is characterized by a large number of eos...
|
|
Chlamydial pneumonia refers to one of several types of pneumonia that can be caused by various types of the bacteria known as Chlamydia.Pneumonia is an infection of the lungs. The air sacs(alveoli) and/or the tissues of the lungs become swollen, a...
|
|
|
Pneumonia is an infection of the lungs that can be caused by nearly any class of organism known to cause human infections, including bacteria, viruses, fungi, and parasites. It results in an inflammatory response within the small air spaces of the...
|
|
One of the most common pulmonary complications affecting cancer patients, pneumonia is a potentially life-threatening inflammation of one or both lungs.Serious side effects in cancer patients most often occur in the lungs and may indicate that the...
|
|
|
Pneumonia is an infection of the lung that can be caused by nearly any class of organism known to cause human infections. These include bacteria, amoebae, viruses, fungi, and parasites.
|
![]() |
Meningitis is swelling and irritation(inflammation) of the membranes covering the brain and spinal cord. This inflammation causes changes in the cerebrospinal fluid(CSF) that surrounds the brain and spinal cord.The most common causes of meningitis...
|
|
The following Clinical Topic Tour provides an overview of meningitis and was adapted from materials published by the National Institute of Neurological Disorders and Stroke, the National Cancer Institute, and the Centers for Disease Control and Prevention (CDC).
|
|
Meningitis is a serious inflammation of the meninges, the membranes(lining) that surround the brain and spinal cord. It can be of bacterial, viral, or fungal origin.Meningitis is usually the result of a viral or bacterial infection.
|
|
Meningitis is the most common serious manifestation of infection of the central nervous system (CNS). Inflammatory involvement of the subarachnoid space with meningeal irritation leads to the classic triad of headache, fever and meningism, and to a pleocytosis in the cerebrospinal fluid (CSF).
|
|
An inflammation of the meninges, most often caused by infection.Meningitis is a potentially fatal inflammation of the meninges, membranes which encase the brain and spinal cord. Meningitis is most commonly caused by an infection of bacteria, virus...
|
|
Bacterial meningitis Epidemiology and microbiology: the overall annual incidence of bacterial meningitis is about 2?3/100,000, with peaks of incidence in infants and adolescents. Integration of vaccines into the UK vaccination programme against Haemophilus influenzae type b (Hib) and more recently against group C meningococccus has led to a marked decline in cases of Hib and Group C meningococcal meningitis and has significantly reduced the overall incidence of bacterial meningitis.
|
|
|
Meningitis is a potentially fatal inflammation of the meninges, the thin, membranous covering of the brain and the spinal cord. Meningitis is most commonly caused by infection(by bacteria, viruses, or fungi), although it can also be caused by blee...
|
|
Meningitis is a potentially fatal inflammation of the meninges, the thin, membranous covering of the brain and the spinal cord. Meningitis is most commonly caused by infection by bacteria, viruses, or fungi, although it can also be caused by bleed...
|
|
|
Meningitis is a potentially fatal inflammation of the meninges, the thin, membranous covering of the brain and the spinal cord. Meningitis is most commonly caused by infection( bacteria, viruses, or fungi), although it can also be caused by bleedi...
|
|
|
Encephalitis is an acute inflammatory process that affects brain tissue and is almost always accompanied by inflammation of the adjacent meninges(tissues lining the brain). There are many types of encephalitis, most of which are caused by viral in...
|
![]() |
Dermatitis herpetiformis is an extremely itchy rash made of bumps and blisters. The rash is chronic, which means it continues over a long period of time.Dermatitis herpetiformis usually begins in people age 20 and older, although children may some...
|
![]() |
Herpes simplex is a viral infection that mainly affects the mouth or genital area.is usually associated with infections of the lips, mouth, and face. It is the most common herpes simplex virus and many people develop it in childhood.
|
|
Tracheitis is a bacterial infection of the windpipe(trachea).Bacterial tracheitis is most often caused by the bacteria Staphylococcus aureus. It frequently follows a recent viral upper respiratory infection.
|