It starts with a sneeze. Someone on the subway didn't cover their mouth and now a cloud of invisible invaders hangs in the ...

As it does with other pathogens, your immune system sees drugs as foreign invaders to be expelled from your body. But ...

Some of our biggest threats can come in the tiniest forms—viruses and bacteria. Thankfully, we are born with a built-in ...

Innate lymphoid cells, which curiously behave like T cells even though they don’t recognize specific antigens, show promise as a potential cancer therapeutic. In the years that followed, other groups ...

Scientists generally agree that eukaryotes, the domain of life whose cells contain nuclei and that includes almost all multicellular organisms, originated from a process involving the symbiotic union ...

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 ...

Cancer immunotherapy, which primes the body's immune system to fight off tumors, has historically focused on harnessing T ...

Researchers identified a natural 'brake' within the innate immune system: the inhibitory receptor Siglec-E (SigE) and its human counterparts, Siglec-7 and Siglec-9. This receptor helps prevent ...

Researchers from Penn’s School of Dental Medicine found that training innate immune system may lead to increased bone loss in inflammatory conditions. Credit: Chenyao Liu Researchers from Penn’s ...

Bacteriophages, viruses that infect bacterial cells, are natural predators and enemies of bacteria. When a phage infects a cell, it lyses, and dozens or even hundreds of new viral particles—phage ...