The entire family of coronaviruses is equipped with multiple methods of evading the human immune system, and two new studies have taken a deep dive into how these viruses, including SARS-CoV-2, leverage highly specialized ...
Immune cells play important roles in mediating allograft rejection and tolerance after cardiac transplantation. However, immune cell heterogeneity at the single-cell level, and how immune cell states shape transplantation ...
May 25, 2023
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When it comes to our health, most of us have heard of prebiotics and probiotics and know something about their benefits to our digestive system (even if it's hard to tell them apart), but what about postbiotics?
May 25, 2023
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A population of unconventional white blood cells has recently captured the attention of immunologists and clinicians alike. Unlike conventional T cells, which circulate throughout the body in our blood, mucosal-associated ...
May 25, 2023
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Up to 60% of cancer patients receive radiation therapy, but it doesn't always work. Failure of these treatments results from tumor regrowth at the primary tumor site, or when the tumor metastasizes to another part of the ...
May 25, 2023
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A new study published this month in Multiple Sclerosis Journal found a pro-inflammatory diet is associated with an increased risk of relapse in multiple sclerosis (MS) patients. The researchers found a more pro-inflammatory ...
May 24, 2023
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A trial of a new vaccine against meningococcal disease, a cause of meningitis and blood poisoning, has found that it is safe and induces a strong immune response across five strains of meningococcal bacteria: A, C, W, Y and ...
May 24, 2023
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Researchers from Fred Hutchinson Cancer Center in Seattle, Scripps Research in La Jolla, California, IAVI and other collaborating institutions have characterized robust T-cell responses in volunteers participating in the ...
May 24, 2023
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Respiratory syncytial virus (RSV) is a highly contagious and seasonal respiratory virus that mainly causes common cold symptoms in healthy adults but can cause more serious lung infections in infants, the immunocompromised ...
May 24, 2023
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Our digestive health has a vast influence on our well-being, affecting our immune system, brain function, body weight, and more, says Avlin Imaeda, MD, Ph.D., associate professor of medicine (digestive diseases), an expert ...
May 24, 2023
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Immunity is a biological term that describes a state of having sufficient biological defenses to avoid infection, disease, or other unwanted biological invasion. Immunity involves both specific and non-specific components. The non-specific components act either as barriers or as eliminators of wide range of pathogens irrespective of antigenic specificity. Other components of the immune system adapt themselves to each new disease encountered and are able to generate pathogen-specific immunity.
Adaptive immunity is often sub-divided into two major types depending on how the immunity was introduced. Naturally acquired immunity occurs through contact with a disease causing agent, when the contact was not deliberate, whereas artificially acquired immunity develops only through deliberate actions such as vaccination. Both naturally and artificially acquired immunity can be further subdivided depending on whether immunity is induced in the host or passively transferred from a immune host. Passive immunity is acquired through transfer of antibodies or activated T-cells from an immune host, and is short lived, usually lasts only a few months, whereas active immunity is induced in the host itself by antigen, and lasts much longer, sometimes life-long. The diagram below summarizes these divisions of immunity.
This text uses material from Wikipedia, licensed under CC BY-SA
