When someone gets a bacterial infection, the human body mounts a complex set of reactions aimed at destroying the invader. The role of what is called the innate immune system -- one of the most basic ...

Where innate immunity stays agile and nonspecific so that it can catch everything, adaptive immunity is more fine-tuned and applies specific tactics to each unique threat. For example, it can tell the ...

SARS-CoV-2 has an enzyme that can counteract a cell's innate defense mechanism against viruses, explaining why it is more infectious than the previous SARS and MERS-causing viruses. The discovery may ...

Unlike transient innate immune activation, trained immunity is characterized by long-lasting but reversible functional reprogramming of monocytes, macrophages, natural killer (NK) cells, and ...

Our immune system is divided into two main branches: innate and adaptive. Innate immune cells act as a first line of defense, quickly responding to invaders, while adaptive immune cells take a longer ...

The immune system orchestrates a multi-step response to protect the body from infections and other diseases. Specifically, ...

We sometimes hear about the benefits of “boosting” our immune system, but what we really want to do is support our immune system on an ongoing basis. People often think of the immune system as ...

An investigational Toll-like receptor (TLR) antagonist was effective in reducing biomarkers and clinical symptoms of systemic lupus erythematosus (SLE) in a pilot trial, evidence that the innate ...