The fetus is an allograft onto the mother and is at risk of rejection, so there is a strong T helper 2 (T H 2)-cell bias to fetal innate immune responses, a tendency also initially manifest in the ...

In vertebrates, innate and adaptive immunity are commonly distinguished on the basis of their levels of specificity, with the antigen receptors of the adaptive immune system mediating highly specific ...

Innate immunity is critical in the early containment of influenza virus infection. The innate response is surprisingly complex. A variety of soluble innate inhibitors in respiratory secretions provide ...

When the worldwide death toll from Covid-19 surpassed five million two weeks ago, it served as a grim reminder that more than lockdowns and vaccines will be needed to end the pandemic. A new study, ...

The Tailor by Giovanni Battista Moroni, c. 1570. Here the tailor cuts the cloth. Endo- and exonucleases coded by SARS-CoV-2 cleave RNA to facilitate viral replication. In previous installments of this ...

For decades, scientists have built bizarre-looking apparatuses for babies to traverse. The purpose of these wobbly bridges, ...