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Doctor insights on: Legionella Antigen

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What's legionella pneumophila?

What's legionella pneumophila?

Legionnaires disease: Legionella pneumophilia is the bacteria that causes legionaires' disease. It was first recognized when it caused an epidemic of pneumonia at a pennsylvania state american legion convention in philadelphia in 1976. Thus the name. ...Read more

Antigen (Definition)

Antigens are chemicals which upon exposure to the surface or inside of the body, will cause a reaction term allergic. Many substances will do this and allergic response is the basis for immunological protection for ...Read more


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What are antigens?

What are antigens?

Antigens are...: An antigen is any substance that causes your immune system to produce antibodies against it. It may be a foreign substance from the environment such as bacteria, viruses, pollen or chemicals. An antigen may also be formed within the body, as with bacterial toxins. ...Read more

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Hepatitis c (HCV) antibody is reactive. The hepatitis C Recombinant Immunoblat Assay(riba) confirmation test is non reactive.Is antibody false positiv

Hepatitis c (HCV) antibody is reactive. The hepatitis C Recombinant Immunoblat Assay(riba) confirmation test is non reactive.Is antibody false positiv

Well : A positive hepatitis C antibody test with a negative or in a test usually is not a false positive that usually means someone had hepatitis C infection and their body cleared the infection and they are now immune to hepatitis C. Do a Healthtap visit or see a primary care physician for specific diagnosis ...Read more

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Hepatitis b surface antigen non-reactive means what?

Hepatitis b surface antigen non-reactive means what?

No active infection: When people have reactive hepatitis b surface antigen, they have proteins from hepatitis b in their blood. These people have active infection and may need treatment. If there is no reactive hbsag, then most likely there is no active infection. Rarely, people who have hepatitis b core antibody detected, but no hepatitis b surface antibody, can have chronic active infection. ...Read more

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Igg positive for rubella ;igg pos fr cytomegalo virus?

Igg positive for rubella ;igg pos fr cytomegalo virus?

Immunity: This just means that there is immunity to rubella and cytomegalovirus based on passed infection. ...Read more

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Is a core positive antibody for hepetitis b is dangerous. Igm antibody negetive. Surface antigen negetive with surface antibody positive. Explain?

Is a core positive antibody for hepetitis b is dangerous. Igm antibody negetive. Surface antigen negetive with surface antibody positive. Explain?

Past infection: The results you described are consistent with a past infection with hepatitis b from which you have recovered. You body made antibodies to the constituents of the virus. These results are not a cause for concern. ...Read more

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Is Enterobacter aerogenes contagious?

Is Enterobacter aerogenes contagious?

Yes: Enterobacter aerogenes is a bacteria that can cause a variety of infections such as urinary tract infections, sepsis, pneumonia, skin/wound infections. It typically does not occur in people who are otherwise healthy. It can be picked up by patients who are hospitalized, particularly in an intensive care unit. It can be picked up from contaminated surfaces. Antibiotic resistance can be a problem. ...Read more

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Can you tell me how dendritic cells present their acquired antigens to t-cells in the thymus?

Surface factors: DCs process and present antigen to activate both CD4+ and CD8+ T cells. Only DCs are capable of activating naïve T cells. Immature DCs lay dormant waiting to interact with foreign antigen. Once the antigen is captured, it is processed either by exogenous, endosomal or a proteosomal pathway. Antigen is taken up by phagocytosis or receptor mediated endocytosis into the cytosol. The antigen is further degraded in the cytosol via proteosome and enters the endoplasmic reticulum where peptides bind to newly synthesized MHC class I molecules for presentation on the cell surface. Here costimulatory molecules including members of the B7 family,and TNF family are present which are critical to the activation of T cells. ...Read more

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Is legionella eukaryotic or prokaryotic?

Is  legionella eukaryotic or prokaryotic?

Prokaryotic: Legionella is a bacterium without a nucleus and is therefore a prokaryote. ...Read more

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What happens if "h. pylori IgG antibodies serum by ELISA positive"?

What happens if "h. pylori IgG antibodies serum by ELISA positive"?

H. pylori infection: .. which causes gastritis with symptoms of early satiety, abdominal pain, heartburn. If you are symptomatic, then you will need the treatment. If you are not symptomatic or have responded to treatment already, then your test result indicates ongoing antibody production (normal immune response to previous infection) and no treatment is required. Good luck! ...Read more

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Antigen injections for warts my 14 year old has several warts that we have tried many things for through out the years to no avail. He was just seen by a dermatoligist and had them froze. She said id this doesn't work, which she assumes it won't, her next

Antigen injections for warts my 14 year old has several warts that we have tried many things for through out the years to no avail. He was just seen by a dermatoligist and had them froze. She said id this doesn't work, which she assumes it won't, her next

Your : Your dermatologist is probably talking about the candida antigen injection. It is typically delivered as an injection into the largest wart or two. Studies show varying effectiveness, but it has certainly worked in many patients. Other than the pain of the injection itself, some patients can get mild flu-like symptoms, but most tolerate it very well. I hope that helps. ...Read more

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HBV test results: Hepatitis B Surface Antigen: Nonreactive; Hepatitis B Core Antibodies: Reactive; HBV PCR: Negative. Need any medication or vaccine?

HBV test results: Hepatitis B Surface Antigen: Nonreactive; Hepatitis B Core Antibodies: Reactive; HBV PCR: Negative.  Need any medication or vaccine?

Excellent question: and your story stumps many a doctor, often! :) a lot of the recommendations depend on - are you someone with risk factors for HBV? is this the first time that it has been checked? are your liver enzymes normal? are you about to undergo any procedures/ treatments that could put you at risk for HBV? If you have no sig risk factors, yes, I'd vaccinate you if there's potential for exposure. ...Read more

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Hepatitis C (HCV) Antibody result is reactive.Hepatitis C Virus Antibody Verification test result is non reacitve. Is antibody result false positive?

Probably not: the presence of the antibody indicates an exposure to the antigen (the virus) . the absence of the virus indicates that the virus has been eradicated. It is possible that the antibody result is a false positive. This is unlikely ...Read more

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Monotest (target values <1.0=negativ). Values: EBV VCA IgG-Ak 39.9; EBV VCA IgM-Ak 1.1; EBNA-1 IgG-Ak 14.7; EBV DNA (PCR) negativ. What does it mean?

Monotest (target values <1.0=negativ). Values: EBV VCA IgG-Ak 39.9; EBV VCA IgM-Ak 1.1; EBNA-1 IgG-Ak 14.7; EBV DNA (PCR) negativ. What does it mean?

Ask who ordered: The test, but in general, they were suspecting EBV infection/Infectious mononucleosis, which looks negative, the final diagnosis is with the doctor who ordered the blood test. Clinical picture is important, finally we treat patients not lab results, good luck ...Read more

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Elevated EBV ab VCA IgG <8 and EBV nucleaer antigen ab IgG test 4.2. & anti-dna(ss)igg ab qn ( 119)& c react protien(5.6) what are implications?

Elevated EBV ab VCA IgG <8 and EBV nucleaer antigen  ab IgG test 4.2. & anti-dna(ss)igg ab qn ( 119)& c react protien(5.6)  what are implications?

Nothing.: Ebv antibodies indicate you had a previous infection, but not active. The c-reactive protein needs a units indicator - that is either normal or somewhat elevated. The anti ss dna is extremely nonspecific and very rarely indicated; I have no idea why that was ordered, discuss with your doctor. ...Read more

Dr. Adam Levy
11 doctors shared insights

Legionella (Definition)

Legionella is a bacterium that is normally associated with water - air conditioning towers, fountains, hot tubs. This bacteria is associated with legionnaire's disease as well as ...Read more