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Research traces the evolution of a gene variant that reduces the risk of Alzheimer’s disease, finding that it originally evolved in response to infectious bacteria.

An independent lab fails to replicate results suggesting mammals exposed to pathogens could pass on immunological protections through epigenetic mechanisms.

Offspring of animals subjected to a real or simulated pathogen were more able to fend off disease, a study finds.

A recent study elucidates some of the changes that occur in the body after inoculation with a tuberculosis vaccine.

Researchers are trying to make sense of immune systems gone haywire and develop biomarkers to predict who will become the sickest from a coronavirus infection.

When mice that had suffered a stroke were given blood from a healthy donor, they experienced less tissue and neurological damage.

Studies are underway to test whether giving a shot of BCG vaccine could protect doctors and nurses against COVID-19.

Injection of a hydrogel that mechanically resembles a blood clot promotes the growth of new blood vessels in mice.

The vesicles promote metastasis after chemotherapy, but the authors say the results shouldn’t alarm patients and may point to ways to improve treatments.

When a mouse’s brain undergoes traumatic injury, immune cells clear the dead from the affected area, after which blood cells swoop in to repair blood vessels.

Using single-cell RNA sequencing, scientists characterize new populations of dendritic cells and monocytes.

Researchers document the diverse roles of immune cells in neuronal health and disease.