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Explore articles about Immune System.
7 articles
An allergy all over the body, often appearing as widespread hives or a systemic rash, occurs when the immune system overreacts to a foreign substance....
Having a moderate drink or glass of wine after receiving your annual influenza vaccination will not typically ruin your body's immune response, but ab...
Afferent lymphatic vessels are specialized vascular structures that transport lymph fluid from peripheral tissues and interstitial spaces into the con...
The 90-day limit following a COVID-19 infection represents a critical clinical window during which individuals typically possess peak natural immunity...
Opportunistic infections are illnesses caused by pathogens—such as bacteria, viruses, fungi, or parasites—that take advantage of a weakened immune sys...
A white blood cell (WBC) count of 14,000 cells per microliter (µL) of blood is considered high, a clinical condition known as leukocytosis. While the...
CD4 cells, often called T-helper cells, are white blood cells that play a vital role in the human immune system by signaling other cells to fight off...
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