From unexpected dizziness to shifts in energy, dehydration often shows up in ways we don’t immediately connect to water intake.

A serious but often missed sign is confusion or trouble thinking clearly. This is called hepatic encephalopathy. It happens when the liver can’t remove toxins from the blood, and those toxins reach ...

The death rate can vary between outbreaks, partly depending on local capabilities for identifying and containing cases. The UKHSA estimates that it falls between 40% and 75%, while Prof Hunter ...