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  2. Immunoglobulin M - Wikipedia

    en.wikipedia.org/wiki/Immunoglobulin_M

    IgM is the first immunoglobulin expressed in the human fetus (around 20 weeks) [46] and phylogenetically the earliest antibody to develop. [47] IgM antibodies appear early in the course of an infection and usually reappear, to a lesser extent, after further exposure. IgM antibodies do not pass across the human placenta (only isotype IgG). [48]

  3. Seroconversion - Wikipedia

    en.wikipedia.org/wiki/Seroconversion

    Anti-core antibodies (anti-HBc) are the first antibodies produced by the body, first in short-term IgM (anti-HBc IgM), and subsequently in long-term IgG; while levels of IgM anti-HBc will peak around sixteen weeks after exposure and fall within about seven to eight months, [63] [64] IgG anti-HBc will remain detectable in the serum as a sign of ...

  4. Human herpesvirus 6 - Wikipedia

    en.wikipedia.org/wiki/Human_herpesvirus_6

    A low total IgG due to immune deficiency won't show increased titer levels. A singular rise in HHV-6 antibody levels may hint at an infection. Quest Diagnostics and ARUP Laboratories are known to provide IFA testing with specific median titer ranges. No IgM Screening Yes, present only during or shortly after active infection.

  5. 6 Things You Need to Know About Herpes Tests, According to ...

    www.aol.com/news/6-things-know-herpes-tests...

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  6. Epstein–Barr virus - Wikipedia

    en.wikipedia.org/wiki/Epstein–Barr_virus

    Antibodies (IgM and IgG) to proteins encoded by the EBV DNA are detected. [54] Direct detection of EBV genome presence via polymerase chain reaction (PCR) is seldom done, as this method says nothing about the immune system's reaction to the virus. EBV viral load does not correlate well with clinical symptoms of infection. [55]

  7. Herpes - Wikipedia

    en.wikipedia.org/wiki/Herpes

    Herpes simplex, often known simply as herpes, is a viral infection caused by the herpes simplex virus. [5] Herpes infections are categorized by the area of the body that is infected. The two major types of herpes are oral herpes and genital herpes, though other forms also exist. Oral herpes involves the face or mouth.

  8. Isotype (immunology) - Wikipedia

    en.wikipedia.org/wiki/Isotype_(immunology)

    The IgG, IgE and IgA antibody isotypes are generated following class-switching during germinal centre reaction and provide different effector functions in response to specific antigens. IgG is the most abundant antibody class in the serum and it is divided into 4 subclasses based on differences in the structure of the constant region genes and ...

  9. Immunoglobulin class switching - Wikipedia

    en.wikipedia.org/wiki/Immunoglobulin_class_switching

    Mechanism of class-switch recombination that allows isotype switching in activated B cells. Immunoglobulin class switching, also known as isotype switching, isotypic commutation or class-switch recombination (CSR), is a biological mechanism that changes a B cell's production of immunoglobulin from one type to another, such as from the isotype IgM to the isotype IgG. [1]