Individuals considered immune to varicella-zoster virus (VZV) include those who have had a previous chickenpox infection, as they typically develop lifelong immunity. Additionally, individuals who have received the varicella vaccine are also considered immune, as the vaccine induces an immune response that provides protection against chickenpox and shingles. However, immunity can vary, and in some cases, breakthrough infections may occur, albeit usually with milder symptoms.
Varicella Zoster Virus (VZV) (also known as chickenpox, zoster, human herpes type three varicella) is responsible for chickenpox and shingles in humans. An individual who is immune to the VZV may catch the virus; however, the body will battle and kill the virus before any notable effects occur. There is a vaccine that provides limited immunity (~10 years) to the virus (for those not already immune); however, the vaccine will not protect against shingles (a stronger vaccine in more limited supply is available for shingles).
Yes, chickenpox is caused by varicella zoster virus (VZV). VZV is a virus in the herpes family.
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The varicella-zoster virus (VZV), which causes chickenpox and shingles, is primarily targeted by IgM antibodies during the initial immune response to an acute infection. IgM antibodies are produced shortly after the onset of infection and indicate recent exposure to the virus. Their presence can be used to help diagnose active varicella or shingles. However, IgG antibodies are typically measured to indicate past infection or immunity.
Varicella-zoster virus (VZV) was discovered in 1958 by Thomas H. Weller and Franklin P. Neva. They successfully isolated the virus from vesicles on the skin of patients with chickenpox.
Humans are the only known host of VZV.
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yes
Toll-like receptors are part of the innate immune system.
Because you have been near someone with it and you are not immune to it. After you have it you should be immune to it though.
No, sperm is not considered an antigen at the time of fertilization. Antigens are substances that the immune system recognizes as foreign and can trigger an immune response. Sperm is a normal component of reproduction and does not elicit an immune response during fertilization.
The causative agent for shingles is the varicella-zoster virus (VZV), which is the same virus that causes chickenpox. After a person recovers from chickenpox, the virus remains dormant in the nerve tissues and can reactivate later in life, leading to shingles. This typically occurs when the immune system is weakened due to stress, aging, or other factors.