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Topic: Opportunistic infections


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In the News (Thu 10 Dec 09)

  
  Opportunistic Infections in Immunodeficient Populations
Assessments of the prevalence and incidence of opportunistic infections in these areas and comparability of the available data are hampered by limited access to care, diagnostic capabilities, and surveillance data.
The opportunistic infections in these patients originate from endogenous flora (e.g, invasive candidiasis), from the general (nonhospital) environment (e.g, histoplasmosis, TB, disseminated strongyloidiasis), or from the hospital environment (e.g, aspergillosis, legionellosis, and infections with vancomycin-resistant enterococci or multiply resistant gram-negative bacteria).
For example, in bone marrow transplant recipients, infections within 1 month of transplantation (pre-engraftment) occur as a result of neutropenia and disruption of mucosal surfaces; infections that occur in the second or third months are due to deficiencies in cell-mediated immunity and are more frequent in the setting of graft versus host disease.
www.cdc.gov /ncidod/eid/vol4no3/kaplan.htm   (996 words)

  
 CCFA.org: opportunistic infections
Opportunistic infections also include infections like herpes and tuberculosis, which affect people with a normal immune system, but which are more severe or occur more frequently in people with a weakened immune system.
Furthermore, opportunistic infections are a frequent cause of relapse or disease flares in IBD patients.
Opportunistic infections in the course of steroid therapy result primarily from prolonged exposure to high doses (greater than prednisone 20 mg/day).
www.ccfa.org /about/news/opportunisticinfections   (1711 words)

  
 HIV related opportunistic infections: prevention and treatment
Some opportunistic infections may be diagnosed by observation or using a microscope, and treated where there is minimal health infrastructure.
Opportunistic infections such as toxoplasmosis, MAC and cytomegalovirus infection can be diagnosed and treated in places with advanced infrastructure.
Tuberculosis (TB) is a bacterial infection that primarily infects the lungs.
www.avert.org /aidscare.htm   (2496 words)

  
 Progress Notes: The Opportunistic Infections of HIV Disease
Opportunistic infections, by definition, are those which occur when a deficiency in the host immune system exists.
Prior to the AIDS epidemic, opportunistic infections occurred mainly in patients with immunological damage as a result of cancer, or malnutrition, or drug-induced immunosuppression in organ transplantation.
Because of the high morbidity and mortality associated with opportunistic infections, it is vital to establish a diagnosis and institute therapy as soon as possible.
web.amfar.org /treatment/tx/archives/1990_4.asp   (1846 words)

  
 Opportunistic Infections: Heart Transplant Surgery Patient Guide
"Opportunistic" infections are caused by the normal bacteria, viruses, and fungi that float around in the air or normally live on your skin.
Some of the common opportunistic infections are pneumocystis carinii pneumonia (PCP), cytomegalovirus pneumonia (CMV), herpes simplex virus that causes cold sores, and herpes zoster virus that causes shingles.
An important sign of these infections is a fever of 100°F or higher for more than 4 hours or a sudden high fever of 101°F or higher.
www.surgery.usc.edu /divisions/ct/ht-pg-infection-opportunistic.html   (232 words)

  
 Opportunistic Infections
The inability to resist such opportunistic infections is usually caused by an underlying disease or trauma, or from procedures and/or drugs that are used to treat another medical condition.
Opportunistic infections are infectious diseases caused by bacteria, fungi, viruses, and parasites that occur in individuals whose immune system is impaired by another underlying disease, defect, injury, and/or certain drugs.
Bacterial infections are a frequent cause of chronic inflammation of the intestines and diarrhea.
hw.healthdialog.com /kbase/nord/nord113.htm   (2085 words)

  
 ACP Home Care Guide for HIV and AIDS. Opportunistic Infections
The organisms that cause opportunistic infections are categorized as protozoa, fungi, viruses, and bacteria.
Opportunistic infections are seldom spread to people who have normal immune systems and are healthy.
Although not all diarrhea is caused by opportunistic infections, it is important to report to health care professionals to determine the cause.
www.acponline.org /public/hiv/chap4.htm   (1810 words)

  
 Opportunistic infections - WrongDiagnosis.com
Opportunistic infections are those infections that are uncommon except when they are given an "opportunity" to infect a person.
The opportunity is usually a problem with the immune system, which can occur as a secondary infection (because the immune system is busy fighting some other chronic illness), or can occur for people whose immune system is compromised (see immunocompromised).
A common type of opportunistic infection is a nosocomial infection, which is contracted during a hospital stay while the patient is ill or recovering.
www.wrongdiagnosis.com /o/opportunistic_infections/intro.htm   (696 words)

  
 WHO | Prevention and Treatment of HIV-Related Infections   (Site not responding. Last check: 2007-11-04)
Infection with HIV progressively weakens the immune system, making the individual increasingly susceptible to certain infections and cancers.
Prevention and treatment of ordinary and opportunistic infections is an important element of HIV/AIDS care and support.
Importantly, treatment of opportunistic infections should be coupled with national ART treatment programmes (as ART itself will decrease the occurrence of all HIV-related diseases in PLWHA), as well as palliative care and psychosocial support.
www.who.int /hiv/topics/opportunistic/infections/en   (551 words)

  
 OPPORTUNISTIC INFECTIONS
Infections that take advantage of weakness in the immune defenses are called "opportunistic".
Candidiasis (Thrush) is a fungal infection of the mouth, throat, or vagina.
Toxoplasmosis (Toxo) is a protozoal infection of the brain.
www.aids.org /factSheets/500-Opportunistic-Infections.html   (838 words)

  
 HIV: Opportunistic Infections
Opportunistic infections are infections that occur if you have a weakened immune system.
When you first seek treatment for HIV or an HIV-related opportunistic infection, your clinician will ask you questions to estimate when you were infected with the virus, and to identify other factors that may affect the progression of your disease.
In people who have already developed opportunistic infections, the same or similar drugs that were used to treat the infection are often used to prevent a recurrence.
www.pdrhealth.com /patient_education/BHG01ID12.shtml   (2320 words)

  
 Anaerobes and Pseudomonas - Opportunistic Infections
Among other pseudomonad-caused infections are those of the urinary tract, often as a result of catheter use or surgery, the brain which can develop abscesses and meningitis, and the eyes and ears.
Swimmer's itch is an innocuous infection of the ear canal by these bacteria but older patients can experience life-threatening infections of the ear which sometimes cause paralysis of facial muscles.
In the case of infections of deep tissues such as in the brain, joints or bone, surgery to remove damaged tissue may be required.
pathmicro.med.sc.edu /fox/anaerobes.htm   (2442 words)

  
 Treating Opportunistic Infections Among HIV-Infected Adults and Adolescents Recommendations from CDC, the National ...
Opportunistic infections (OIs) continue to cause morbidity and mortality in patients with human immunodeficiency virus (HIV)-1 infection throughout the world.
Because the risk for transmission with chronic infection appears low, routine evaluation of the fetus for infection with amniocentesis or cordocentesis is not indicated.
The diagnosis of bacterial respiratory tract infections among pregnant women is the same as for nonpregnant adults, with appropriate shielding of the abdomen during radiographic procedures.
www.cdc.gov /mmwr/preview/mmwrhtml/rr5315a1.htm   (16714 words)

  
 Amazon.com: Opportunistic Infections (Infectious Disease): Books: Vassil St. Georgiev   (Site not responding. Last check: 2007-11-04)
The challenges in writing a book about opportunistic infections parallel the complexities of treating a patient who is at risk for such infections.
Opportunistic Infections: Treatment and Prophylaxis is organized into four major parts covering bacterial, viral, parasitic, and fungal infections.
In addition to well-known opportunistic pathogens, each part includes new and emerging species that may be either taxonomically related to a major disease-causing microorganism or microorganisms not until recently considered to be human pathogens.
www.amazon.com /Opportunistic-Infections-Infectious-Disease-Georgiev/dp/1588290093   (1573 words)

  
 MedlinePlus: AIDS and Infections
Opportunistic Infections (New Mexico AIDS Education and Training Center)
Opportunistic Infections and Related Diseases, and Their Treatment (New Mexico AIDS Education and Training Center)
The primary NIH organization for research on AIDS and Infections is the National Institute of Allergy and Infectious Diseases
www.nlm.nih.gov /medlineplus/aidsandinfections.html   (394 words)

  
 AIDS Pathology
The textbook includes a general discussion of the pathophysiology of HIV infection, organ system pathology of AIDS, and descriptions of the opportunistic infections and neoplasms associated with AIDS, and a general discussion of issues, including safety and education, related to the AIDS epidemic.
Infection is also aided by the presence of other sexually transmitted diseases that can produce mucosal ulceration and inflammation.
Infection with cytomegalovirus may serve to enhance HIV infection via this mechanism, because CMV encodes a chemokine receptor similar to human chemokine receptors.
library.med.utah.edu /WebPath/TUTORIAL/AIDS/AIDS.html   (1632 words)

  
 [No title]
Opportunistic infections are caused by microorganisms, such as fungi, that usually do not cause disease, but under certain conditions such as weakened immune system can cause disease.
Severe opportunistic infections are common in advanced infection caused by human immunodeficiency virus (HIV).
The study has been selected for oral presentation at the 12th Conference on Retroviruses and Opportunistic Infections to be held in Boston, MA during February, 2005, at which time a detailed description of the clinical trial and results will be provided.
www.lycos.com /info/infections--opportunistic-infections.html   (550 words)

  
 Pseudomonas
It causes urinary tract infections, respiratory system infections, dermatitis, soft tissue infections, bacteremia, bone and joint infections, gastrointestinal infections and a variety of systemic infections, particularly in patients with severe burns and in cancer and AIDS patients who are immunosuppressed.
The pathogenesis of Pseudomonas infections is multifactorial, as suggested by the number and wide array of virulence determinants possessed by the bacterium.
Although colonization usually precedes infections by Pseudomonas aeruginosa, the exact source and mode of transmission of the pathogen are often unclear because of its ubiquitous presence in the environment.
textbookofbacteriology.net /pseudomonas.html   (3239 words)

  
 aidsmap.com | Prophylaxis for opportunistic infections
Opportunistic infections (OIs) are infections that take advantage of HIV-related damage to the immune system.
It is quite well established that particular opportunistic infections usually only occur after a particular degree of immune damage has taken place, as measured by the CD4 cell count.
It is standard medical practice to provide 'maintenance therapy' to people who have already experienced certain opportunistic infections, such as tuberculosis, cytomegalovirus of the eye or brain, toxoplasmosis or cryptococcal infection, to prevent a recurrence.
www.aidsmap.com /en/docs/D292AE66-5A72-4B28-A3FB-01FE3E7DD35C.asp   (790 words)

  
 Opportunistic Infections
It is possible that the main title of the report Opportunistic Infections is not the name you expected.
These infections may occur in individuals whose immune system or other physiological defenses are impaired or compromised in some way.
Opportunistic infections may be caused by bacteria, fungi, viruses, or parasites.
www.webmd.com /hw/hiv_aids/nord113.asp   (470 words)

  
 OPPORTUNISTIC INFECTIONS
Treatment for active infection: If an animal that becomes clinically ill is diagnosed promptly and correctly, toxoplasmosis is responsive to clindamycin (25 mg/kg orally in divided dose two to three times a day for 3 weeks) or trimethoprin sulfate(120mg/kg orally twice daily for 3 weeks).
Opportunistic infections (OIs) remain the most important complications of HIV infection, resulting in profound morbidity and mortality.
Opportunistic infections are less common in the stomach, however, and the gastric manifestations of HIV disease have been more difficult to characterize.
www.geocities.com /gittleman1/do00002.htm   (3682 words)

  
 Postgraduate Medicine: HIV/AIDS Symposium: Preventing and treating major opportunistic infections in AIDS
Mycobacterium tuberculosis infection in patients with early HIV infection usually resembles the reactivation pulmonary disease seen in persons who are HIV-seronegative; however, the majority of patients with advanced AIDS have signs and symptoms of atypical extrapulmonary tuberculosis.
Candidiasis is the most prevalent fungal opportunistic infection in AIDS, occurring in up to 90% of patients at some point in their life.
However, as prophylaxis against opportunistic infections grows more effective, the syndrome is increasingly seen as a premortal event in patients with end-stage AIDS (3).
www.postgradmed.com /issues/1997/10_97/cavert.htm   (4671 words)

  
 ACS :: Treatment and Prevention of Opportunistic Infections
Unfortunately, infections continue to be directly responsible for most deaths associated with HIV.
Infections may develop from (1) reactivation of an infection acquired earlier in life (as the immune system becomes less effective, the infection flares up and causes disease) or (2) newly acquired infections from the environment.
These infections may be caused by bacteria, viruses, fungi, or parasites.
www.cancer.org /docroot/CRI/content/CRI_2_4_4x_Treatment_and_Prevention_of_Opportunistic_Infections.asp?sitearea=   (836 words)

  
 Opportunistic infections
Opportunistic infections occur in people whose immune systems have been weakened by a disease, such as AIDS.
Opportunistic infections that are common in people who have AIDS include Pneumocystis carinii pneumonia, tuberculosis, and toxoplasmosis.
Treatment for opportunistic infections depends on the type of infection and the original disease.
www.webmd.com /hw/health_guide_atoz/sto167616.asp   (97 words)

  
 AEGiS-GMHC: Opportunistic Infections Update
Invasive fungal infections include cryptococcosis (a fungal infection usually affecting the brain or the lungs), histoplasmosis (an infection found predominantly in the mid-West and the Caribbean), or aspergillus (a fungus which causes pneumonia in neutropenic patients).
The rate of invasive fungal infections was 10.9 percent for the clotrimazole arm compared with 4.2 percent in the fluconazole arm.
So-called non-invasive fungal infections such as oral and esophageal candidiasis (thrush), fungal infections of the skin and vaginitis were more common among those who received clotrimazole troches.
www.aegis.com /pubs/gmhc/1994/GM080104.html   (2679 words)

  
 AidonAids : For Healthcare Professionals :: Opportunistic Infections
Symptoms: The usual symptom is meningitis (an infection of the covering of the brain), but infection of the lungs, kidneys, prostate, bone, liver, and skin do occur.
Introduction: MAI is an atypical mycobacterium of environmental origin that is a common opportunistic infection in immunocompromised HIV-infected patients and is an AIDS-defining illness.
In HIV infection, the GI tract may be involved with extrapulmonary TB either as direct extension from pulmonary lesions, where the esophagus is usually involved, or from systemic spread, where any part of the GI tract including liver and pancreas may be involved.
www.aidonaids.com /fordoctors/opportunistic-infections.htm   (1810 words)

  
 UpToDate Primary prevention of opportunistic infections in HIV-infected patients
The cost effectiveness of preventing infections is variable, ranging from $16,000 per quality adjusted life-year saved for Pneumocystis carinii pneumonia to over $300,000 for cytomegalovirus (show table 1) [1].
The use of prophylactic antibiotics for primary prevention of the most common opportunistic infections will be reviewed here (show table 2).
Clinical manifestations and treatment of specific opportunistic infections and secondary prophylaxis are discussed elsewhere.
patients.uptodate.com /topic.asp?file=hiv_infe/6485   (449 words)

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