Inflammation can promote the development of lymphoid structures in tissue sites at which they do not normally occur. Here, the authors discuss how these ectopic lymphoid-like structures arise and ...

An ear infection can present as a dull, persistent ache, and is sometimes accompanied by pressure, discharge, itching, fever or muffled hearing.In more severe cases, the pain can be sudden, sharp ...

Ten-month immunity after Covid-19 infection seems strong against all variants of the coronavirus, the study found. “There’s quite a long sustained protection against severe disease and death ...

A bacterial infection is a common type of illness that occurs when harmful bacteria invade your body and start to multiply. There are several types of bacterial infections, all of which cause ...