Louse-borne relapsing fever is an acute bacterial infection that triggers recurring episodes of high fever. It is caused by ...

Louse-borne relapsing fever is caused by the spirochete bacterium Borrelia recurrentis, which is transmitted by body lice ...

Arachnology and toxinology have increasingly illuminated the structural, biochemical and evolutionary diversity of venom ...

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 ...

Innate immunity constitutes the body’s first line of defence against infection and tissue disruption. It relies on physical barriers such as skin and mucosa, cellular sentinels including neutrophils, ...

Researchers have discovered that mRNA-based COVID-19 vaccines have a persistent effect on the innate immune system. These mechanisms may help the human body to better protect itself against potential ...

Allergic asthma is driven by a complex interplay between innate and adaptive immunity in which the complement system plays a central role. Activation of complement via the classical, lectin or ...

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 ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American The very first line of defence against any ...