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Figure 1. Early Symptoms of HIV. The stages of HIV infection are acute infection (also known as primary infection), latency, and AIDS. Acute infection lasts for several weeks and may include symptoms such as fever, swollen lymph nodes, inflammation of the throat, rash, muscle pain, malaise, and mouth and esophageal sores. The latency stage ...
If they detect something foreign passing through them, they enlarge. This is called lymphadenopathy or swollen glands. Usually this is localized (for example, an infected spot on the scalp will cause lymph nodes in the neck on that same side to swell). However, when two or more lymph node groups are involved, it is called generalized ...
The symptoms of allergies resemble those of the common cold; however, they often last for more than two weeks and, despite the common name, typically do not include a fever. [3] Exposure to animals early in life might reduce the risk of developing these specific allergies. [3]
However, about 4-12 hours after antigen exposure, a cough and wheezing may persist in the patient, along with swelling and redness of the skin. This is known as the late-phase hypersensitivity reaction which can last from approximately 1-3 days and is caused by the release of additional mediators from the mast cells and basophils.
Gradual enlargement of the major salivary glands, particularly the parotid glands. [3] This swelling may be on one side or both sides, may cause disfigurement and may be painful. [2] Xerostomia (dry mouth) with no other cause such as a side effect of medications. [2] HIV-SGD may be the presenting sign of HIV infection. [3]
And why days 5 through 10 are so important.
Lymphadenopathy of an inflammatory type (the most common type) is lymphadenitis, [1] producing swollen or enlarged lymph nodes. In clinical practice, the distinction between lymphadenopathy and lymphadenitis is rarely made and the words are usually treated as synonymous. Inflammation of the lymphatic vessels is known as lymphangitis. [2]
An illustration that shows how antigens induce the immune system response by interacting with an antibody that matches the molecular structure of an antigen. In immunology, an antigen (Ag) is a molecule, moiety, foreign particulate matter, or an allergen, such as pollen, that can bind to a specific antibody or T-cell receptor. [1]