Scientists are investigating whether the JN.1 variant of Covid-19 is targeting peoples' intestinal tracts. JN.1 is highly infectious and immune evasive, prompting suggestions that it needs its own Greek name. The variant has changed its requirements for entering cells, potentially leading to more efficient infection of specific tissues such as the gut. JN.1 is rapidly spreading and has been designated a variant of interest by the World Health Organization. It accounts for a significant proportion of strains in circulation and is contributing to rising Covid hospitalizations.